http://evilwithin.net/forums/viewtopic.php?f=2&t=666
Supposedly, they are going to be using the Unreal 4 engine for their next game. For those that don't know, The Evil Within used the id tech 5 engine, which was meant for first person shooters. So if Tango's next game is in fact The Evil Within 2, this is amazing news since the Unreal 4 engine can make more things technically possible. Their next game is also likely going to be current-gen only (PS4 and Xbox One, and of course PC) since there are a lot of mentions of the PS4 and Xbox One and no mentions of last-gen.
So for those that enjoyed The Evil Within, there is hope for a sequel. :)