Diablo - D4, D3 on switch maybe D2 remastered
OW - hero , map and probably an animated short
SC - probably nothing
HoTS - maybe another hero
WoW - more about 8.1 , 8.2 hype train buildup (maybe an ingame cinematic trailer argus style) and next allied race or/and new goblin and worgen models
WoW Classic - soon™ and demo