While rereading HoA I decided to do a bit of research on an informant. But I also found another interesting tidbit on Theoryland.
This WoB. It implies TenSoon is eventually going to be able to reconnect with Vin, or at least, someone with Hemalurgic spikes is going to be able to communicate with someone that's departed to "The Beyond" (or the Spiritual Realm)...
Yeah, this looks like one where I was tired from answering a lot of questions, and was thinking about Kelsier--I was really excited to write Secret History back then. I realize that it wouldn't make sense for Kelsier to want to talk to TenSoon, but you'd be surprised the things that you say sometimes when you're trying to write in someone's book, keep yourself from giving too many spoilers, but also answer questions. You can go on auto-pilot sometimes for a minute or two, answering questions that my brain THINKS someone asks, when it's not one they actually asked. Or mashing together two questions, and having a kind of crossed-wires brain moment. You can see me do this on Reddit sometimes too, if you look back through my history. I often catch it and edit to explain myself, but not always This was during the era when I was heavily laying foreshadowing to fans for Kelsier's return, so it wouldn't feel like a cheat when I eventually got to Secret History. So I was looking for opportunities to talk about people with spikes communicating with the Cognitive Realm. I can't remember. There's also a possibility that I was still contemplating Vin staying, which she could have done, as someone who'd carried one of the powers. Either way, I made the call that even bringing Kelsier back was dangerous for undermining consequences, and having Vin hang around would be counter to her character arc and the arc of the stories. So Vin and TenSoon won't be talking any time soon. Sorry to shut down conversation on this one, and sorry to lead you on.