Warlock - Hexblade. It would be very fitting for Wyll as the Blade of Frontiers.
Blood Hunter - Order of Profane Soul just as well. IMHO it even fits Wyll much better.
Which ties in nicely to the parallel debate about classes taking place over at
https://forums.larian.com/ubbthreads.php?ubb=showflat&Number=852509#Post852509, given I believe Blood Hunter is a class developed for the Critical Role setting Tal'Dorei and am not sure if there's (yet) any canon that could explain its powers manifesting on Toril. But as I just said on that other thread, as long as whoever is first introducing a class/race goes to at least some effort to explain its appearance I'm perfectly open to the idea.
Though
my pet theory about Wyll was that he was conceived as a multiclass Fiend Warlock/Swashbuckler Rogue (hence the otherwise puzzling reference to his background as a thief). That would require the non-PHB Swashbuckler class. And Hexblade doesn't seem right to me for him, given the very prominent role expected for his cambion patron. And I'm not seeing Blood Hunter in him either - the monster hunting sure, but it seems like that came after his pact whereas I think the pact comes at level 3 for Order of the Profane Soul so that and the blood magic would need to be rewritten in from the start to make it work. Though either option probably could be made to fit with a bit of rejigging, given I believe we've been told that the actual act 1 will be quite different from EA.
