I'd like the gameplay to be more the open, intense, very cathartic style of the 90s version rather than the mediocre, claustrophobic survival horror of Doom 3. More realistic, over-the-top gore effects in the trailer and some interesting character redesigns, particularly what looks like a much faster, more aggressive Revenant towards the end.
I'm interested in all of those E3 games ; Fallout 4, Dishonored 2, Doom 4, Final Fantasy 7 remake, and looking forward to more detailed reviews in the future.