ImKrypton
If there was Any shard to be offered to Hoid, it would have been this one [Whimsy].
Brandon Sanderson
Hoid is far too calculating and deliberate for Whimsy. It might seem his style on the surface, but a deep dive into who he is would show that it's very much not who he is.
DeJeR
Will we ever see the world or magic system for Whimsy?
Brandon Sanderson
Some day, hopefully.