Prince Adam - Teen, of course. Hopefully they can do a smaller buck for him; his 200X figure was one of my faves.
Roboto - New head, feet (though not as huge as the 200X one), weapons, and an armor peice to put over his chest. Would be nice to see some extra shoulder guns too!
Sorceress - Not just a recolored Filmation one, but with all the 200X details!
King Hsss - I think there are enough differences to make a unique new figure.
Snake Armor He-Man - The most important He-Man variant, in my opinion! A blade for the arm (rather than a claw) and at least the canceled shield. Dunno what kinda sword...
Trap-Jaw - Probably a waste of a vote for most folks, but I don't care. I LOVE that figure! I'd like to see a whole new arm and shoulder cover (weapons as well, obviously), new left forearm, and at least new feet if we can't have the legs styled after the 200X figure. Would be neat to deco a scar on his chest too.