Are the lighteyes descendants of the first people who took the Shards after the Knights Radiant abandoned them?
I'm afraid I have to RAFO this too.
If Kasbal hadn't been trying to kill Jasnah, would him and Shallan have gotten together?
It's uncertain. He actually did care for her, but he was an assassin trained to infiltrate and gain the trust of people like Shallan. If he hadn't been trying to kill Jasnah, he would never have had a reason to begin spending time with Shallan. However, I assume your question is if they had somehow started interacting, would they have gotten together. It's possible, but I don't think--in the end--it would have lasted.
Would an Archivist who was sufficiently practiced be able to store memories at different strengths? (Keep a vague recollection of the memory as well as a stored copy which would degrade faster)
I don't think this is outside of reason for one to do, if they wanted to. I'm not sure if they would want to, but it's plausible.
Do you plan a magic system which enables the character to manipulate the four elements with their will? I mean not so bounded, like Allomancy with Pushing or Pulling but shaping/summoning the elements according to the wishes of the person. I ask this, because in the whole fantasy genre I rarely find something like this (except: Arc Magica RPG), so I had to develop it myself at home. But from the authors I know you are the person who has the creativity to do this without doubt.
Maybe, but there are a few problems here. For one, "Four elements" magic has been done over and over in books and video games, so it feels hard to make fresh. And in what you describe, it sounds like the characters would be very powerful, which makes for a challenging story to write.
When will be see the whole Cosmere-concept (Shards, the plans of Hoid) at the level of the books? In the third Mistborn trilogy or earlier? In which books do you plan to finish the "hidden story" which connects all your earlier books?
Third Mistborn Trilogy will certainly include some of this. We shall see if I do any of Hoid's stories before then.
As Dalinar gave his Shardblade to Highprince Sadeas, was his motivation only to free the Brigdemen as "Thank you" for the help? Or did he already plan to build a team from soldiers who are loyal only to him?
He certainly saw the side benefits. However, his primary motive was to make a statement. Not just as a thank you, but as a way of proclaiming to all of the Alethi "What we have been doing is wrong. This wealth is not worth the lives of men."
Most of your heroes are true traditional "heroes", because they want to be useful for the family/society/other, and they often lack selfish, "dirtier" motivations. Will we sometimes see characters, who are not villains but are rather egocentric?
Expanding that, however, I feel that in general, other people are telling stories about "dirtier" characters and doing it well. I don't feel characters who are generally good characters are any less realistic, however--in fact, almost everyone I know is more like Vin or Dalinar. They want to be good people, they TRY to be good people. Fantasy has taken a very dark turn in many ways, and this is fine, but it is not the type of story or characters in which I am interested.
That doesn't mean I won't ever do it. There are some far more borderline characters mixed into some of the series, but they are more the exception than the rule.
According to [Sanderson's Second Law of Magic] your characters have flaws, weaknesses. What is the reason, that in a lot of them (Vin, Elend, Kaladin, Dalinar, Spook, etc) the most significant weakness is the lack of self-confidence?
It's because of mode-shifting. The people you noted have been doing one thing for a long time, and are now forced into something else. The self confidence is a side effect of that. However, I wouldn't say it's the primary character attribute for any of them, however. I think you're blanketing self confidence as a larger issue, when it's the smaller part of something larger for each character.
Vin: Trusting Others
Dalinar: Conflict between the killer he was and the man he wishes to be.
Spook: Self Worth
Would you be willing to write a Ketek in High Imperial? It's just something that's been going around in my head for a while, I think it'd be pretty cool XD.
Ha. I...really would rather pass on this one. Getting the Ketek right in [The Way of Kings] took weeks of writing and rewriting. I'm not sure I'd like to try something, even for fun, in a quick forum write like this.
If tapping heat means your own body gets hotter, does it also mean you become immune to hot temperatures so long as you're tapping it, or should you fill heat and grow colder for that to happen?
As everything in Feruchemy, you become immune to the effects of the ability only. Like weight doesn't crush you, but at the same time doesn't have a net gain in strength. Growing colder, however, would be more helpful in this regard.
If there's really no upper limit to Feruchemy for practical reasons* , why didn't Sazed just fill steel at ridiculous levels for a few minutes in [Well of Ascension], and then go back to running instead of leaving his steelminds there? Say, being some 100,000 times slower than he would normally be for about a minute. Meaning that a Feruchemist should be able to fill a given metalmind in very short periods of time if you fill at a high enough rate.
*(yes, you have the limit of how much you can store in a given metalmind and for how many metalminds you can carry on your person, but those are probably too high to really be taken into account in more "normal" circumstances)
The low end is bounded. You can pull out tons--but in filling, you can only go so far. I didn't ever explicitly talk about this in the series, but the implications are there. Not all have the same bounds, but in your example, the body just can't slow beyond a certain point. Think of it this way--you can only fill a weight metalmind with as much weight as you have to give. So you can become very, very light--but you only add to a time for doubling your weight. You can't make yourself 100,000 times slower and gain 100,000 times multiplication. You can give up all of your normal speed, and so when you tap that speed out you are at 200% for an equal period. (And that's a theoretical maximum; realistically, you can only go to down around 75% slower or the like.)
Just wondering, are you ever going to go back and write about The Further Adventures of Lestibournes? I think his character is pivotal to the Mistborn trilogy and felt cheated that the trilogy mostly focused on Vin, Kel, Sazed, and Elend. I would like to know more of his backstory and how he became the stud that he is.
He became quite the 'stud' in the years following the first trilogy. I might be persuaded to show some of this at some point. He also knew many things he really should not have.
How is heat a mental attribute in Feruchemy?
Because I messed up. I don't know if I've mentioned this before, but that power was supposed to be swapped with another one. (You might be able to guess which one.) However, by the time I realized my mistake, it had already been canonized in print in the trilogy, so I was stuck with it. I've been tempted to go back and correct the error, but it reaches pretty far back. People drawing upon warmth is mentioned in the first book. One thing to keep in mind, however, is that in general the 'physical, mental, etc' things are applied by people--they are boxes that people investigating the magic have used to describe it.
So, those things on the inside cover of [The Way of Kings]. Crabwasps, or crabdragons?
They range between the size of a hand to perhaps the size of a small melon. You'll find out more about them eventually. Like most things from Aimia, they're pretty odd, and are also now very rare since the Scouring.
In your books, we see a lot of really interesting and diverse world elements that make these places and cultures really come to life. What are some of the world elements you've had the most fun creating, and what do you like best about them?
I'd say that the spren on Roshar have been my favorite so far--they are so different, but also so RIGHT. They have a mythological fae-feel to them, but also fit into the cosmere arcanum just perfectly. I also like writing them.
How does Snapping work after Sazed changed it? If you don't want to reveal it all right now, are there any hints you can give us?
He couldn't get rid of this entirely. I don't want to spoil things, but Snapping was built into Allomancy primarily because of larger-scale magical issues. This is getting deep into the issue, but it has to do with a person's spiritual makeup and a 'wounded' spirit being easier to fill with something else, kind of like a cut would let something into the bloodstream. Sazed made this threshold on Scadrial much easier to obtain.