Very likely, but we'll see when we see more. From the small gameplay clips it sure looks like it. Also don't forget exploring around the unknown and puzzles Capcom!
And use that hallucination and madness idea you've been throwing around since Resident Evil 3.5 (and later in Resident Evil 4.5). It's a good idea it just seems like you guys have been waiting to use it. --- Only if you pay me.