New Info On The PlayStation "Neo"

[TallSilhouette]

http://www.eurogamer.net/articles/digitalfoundry-2016-how-playstation-4k-neo-and-the-original-ps4-will-co-exist

All games will run on both PS4 and Neo. It is just not mandatory to have specific visual/performance enhancements for the Neo version, as poklane said.