Title seems a bit Assassin's Creed-ish.

But that VGLeaks implies it's Guerilla Games. They do FPS, so if it's an FP 19th century game then it could be more Dishounoured-ish.

maybe a ARPG

@Bold: This, a thousand times this.  Two teams means Uncharted and new IP for now.  Yoshida even said that they want to find a balance between existing IP's and new IP's.   Like it or not Uncharted will more than likely be around for a little longer.  As long as the franchise doesn't become stale, which it obviously hasn't yet to most, then keep the Uncharted games coming.   Uncharted is easily their most successful IP, maybe not the top seller of their franchises like Crash, but with critics and fans.  I personally think they will make a couple more Uncharted games while creating other games set in the TLOU universe and then the Uncharted team may create a new IP while the TLOU team creates more in TLOU universe.  That way each team will get to create a new IP at some point and time.

Wow the blurried Naughty Dog employee looks totally like Nathan Drake :D

Wow, I can't believe the wild speculation that this blurry screen shot taken of a PC monitor has created. We can tell almost NOTHING from this. Do you really thing that Naughty Dog would let such a thing slip while conducting a controlled interview in their offices? I highly, highly doubt it. Usually the simplest explanation is the best, and this is simply just some concept art for either Uncharted or The Last of Us. Or it could just be multiplayer DLC skins as someone already mentioned. It's pointless to speculated and say "It's for the PS4! OGM!!!" when can't even tell what the characters are wearing.