I'm sure we had a thread for this but never mind.

Trailer:


Gameplay video:


Now I've not watched it all, or even much of it, because I know I'm going to buy it on release and don't want to spoil stuff.

However, I've skipped through to have a look at this time-jump level/gizmo thing I saw RPS talking about. If you want to see it, go to 15:20, it's really nifty.