In the instance that you are one of those "don't want to spoil anything" people, I'll give you a run down on what is touched on in the longer video besides a bit of the story.
First, it looks like there is going to be quite a bit of Heavy Rain style QTEs to move about the basics of the game world. That covers opening doors, playing the guitar, and about anything else that you want Jodie to do. It is also not fully clear if Aiden, the other soul in the game, is also controlled in the same way, but there is no indication of it on the screen during the videos.
Also, it looks like when it comes down to actual combat in the game, there is a lot of "bullet time" used. This is for what seems like almost every attack that you perform or fail to perform. It's almost like they want emphasize the hits that connect and that is it. I can see this getting very old fast, unless it is part of the actual game play. But think of it like hitting an X-Ray move in MK9 for every hit.
Lastly, Aiden the 'ghost'. At least that is the name I hear Jodie call out to help or save her. The long clip shows that for the most part he is used for distractions, breaking things, and stopping Jodie from killing herself. I know other clips have shown other instances of use, but that is pretty much all that is covered here. I can't really go in on that more without breaking the promise of not spoiling things directly here.
Take a watch and leave your thoughts down below.
Game Trailer
Game Play