I think PS5 won`t be around before 2020. The thing is development in this gen is super expensive already, another leap in development costs that will come along with a new machine that will push towards native 4k as standard( i gave up waiting for 60 fps to be standard for console) and massive leap in graphics quality (wich is not the same as resolution) is something the market is not ready for.
A new gen only justifies when developers start to feel the current hardware is limiting their creativity. I cant wait for the news of GTA PS5 being the first Billion Dollar budget game.







