I haven't seen a ton about it, and what I have seen I'm not really sure what to make of. It looks rather...schizophrenic right now. It's a shooter-platformer-action-adventure-open-world bonanza. But when games try so hard to fit into so many genres, they usually tend to overextend themselves *cough*Fallout 3*cough*
It certainly looks pretty...but everything looks pretty right now. Interesting concept, but again, plenty of good ideas can be executed poorly. On the whole...I just don't know. It doesn't intrigue me enough to want to buy it when it first comes out. I'll probably pick it up used in a few months when the prices come down. The organic path-finding system seems pretty cool, but it also looks like a fairly shooter-heavy game without much tactical abilities (no cover system, no camping out to snipe enemies, making the included sniper rifle kind of pointless). I think if you're going to have such a sprawling world and broadcast all the different paths you can take and ways you can solve problems, you could at least include some way to play the game somewhat stealthily. But no, the developers seem to want you to just blast everything in sight, and that's really not my kind of game.