Don't know about you guys but if the tech tree in this game is going along the path of the old game I'm starting to feel like I've seen too much. Looking at some of the demos, they show what seems to be all the plasma weapons.
The flying suit was the last armor you could get in the old one and they have shown us this too. There is one part of the demo that shows some operatives abseiling down into what as been speculated as the mothership (although I think this maybe an Alien base mission).
We have seen most of the alien types.
I'm going to stop looking at this game now till it comes out to try and forget what I've seen. I'm worried there will be no surprises left.