Why doesn't someone release a PC game with next gen specs now?

[Gilgamesh]

pezus said:

Here's a bit of next-gen for you: http://gamrconnect.vgchartz.com/thread.php?id=145420&page=1

http://www.youtube.com/watch?v=xH9ooDvEH5g

http://www.youtube.com/watch?v=CZkUnciopl0

Looks amazing but still that's 2013 games, wasn't it possible to make that years ago?