Kurotowa
Legend
Beast Barbarian and Undead Warlock are both high on my "It'd be cool if..." list. Shadow Sorcerer is cool in concept but needs some series rework. Having played one I think Echo Knight is a bit too weird, but Rune Knight might fly.So for Barbarian I think your list is probably what we will see. I would love to see Beast instead of Zealot.
Fighter my money would be on Rune Knight over Echo Knight just to distance from Mercer expecialy with there new game systems coming out.
Sorcerer I think we will get Shadow over Divine Soul.
Warlock I am hoping for the Undead or the Genie making it in.
Wizard I have a feeling they will put the Bladesinger in but to me it is a toss up between a conjurer and the illusionist.