-Horror -HUNK -Horror -No poorly-placed Cowadoody action sequences (coughcoughRevelationscough) -Horror -In-context puzzles -Limited ammo (so far, the only games with really limited ammo was RE1, REmake, and maybe 4) -Horror
Definitely more horror. Revelations did have quite a few jump scares early on (especially SPOILER ALERT, the body in the vent and when you see undead Rachael the first time and maybe the underwater section when you get eaten by those blobs) but it didn't have enough in my opinion.
HUNK had better return in a future game. Whether he's a bad guy or good guy, I don't care, but he has to come back.
As for puzzles and limited ammo, they're two of the things that made the series a success to begin with. So they must bring them back.
I would really like a return to the roots of the horror genre and a move away from the fast-paced hollywood-esque drama and action that's recently developed in the BH/RE series. I miss the scarier stuff so I hope the next will be a little darker and less action-oriented.