For example there are two shots that are obviously cutscene:


But it would be cool if various locations did have these angles.
There are some shots that do make me wonder if these are gameplay with fixed camera angles. Such as this one:

But arguably it could just be angles of real gameplay only made for the trailer.
This shot is a typical 3rd person camera angle. The animation in the scene is very fluid, but I suspect that there is a lot of contextual real-time animation in walking etc.

I don't think the entire game is returning to fixed camera angles, and will be a typical 3rd person game, though hopefully not an OTS one like SH2 Remake. But I do think it'll be cool if it takes a page out of Downpour and occasionally uses fixed angles.
What I think would be a cool idea, if I were making a game, would be to still have real-time 3D environments, and make the majority of the game using fixed camera angles, but whenever an enemy is aggro'd in the area, to have the camera move from it's fixed location to behind the player character's back for potential combat. Or have it toggable by the player. Ideally areas would have to be designed around this so that locations of items, doors, enemies etc. would be easily readable for exploration and stealth.
We can already see evidence of the game going from cutscene to behind-the-back combat towards the end of the trailer where she picks up the pipe and confronts something coming towards her.