Interesting project Tom thanks for posting, I've cast a few votes.
The Marines of the Guard are interesting, so too are the Pontoniers, although I know there are already good figures available for them.
The witches set will be popular, I think, it crosses boundaries. But I do hope it's not just witches being tortured and executed by Inquisitors.
Some of that sort of thing will be OK, and, yes, the "Witches" can just as easily be heretics or political opponents or the King's creditors or any other group of people who's existence was an inconvenience.
But I really hope there are some classic, cliched, story book witches, with long gowns and pointy hats, and riding broomsticks. The kind of figs that would serve equally well for depicting Goethe's Walpurgis Nacht or a scene from "Harry Potter". And three Wierd Sisters stirring a cauldron.
Because sometimes I like to make things as historically accurate as my limited knowledge will allow... And other times, I just don't!