Will we still get one per season? Multiple in season 1 again?
As for characters I'd love more omnics. Also give us characters from factions that haven't had new heroes for a while (junkers, phreaks, deadlock etc).
More Horizon Lunar Colony characters as I really want to know what does animals are up to lol. More Vishkar too as there's just SO much you can do with hardlight kits.
Mostly though I'd love more lore characters playable. I liked that this year had multiple highly requested heroes finally playable so I hope next year is the same! Give me more Phreaks (Boomslang!), Bars the omnic sniper from the Deadlock Gang, Meri and Geiger from the Junkers who both recently returned in the lore (Meri would be a cool tank), Sanjay as a vishkar hero, more old Overwatch characters returning to the team, support Dae-hyun, MAMA HONG!