http://www.ign.com/articles/2013/06/05/dc-universe-online-and-planetside-2-coming-to-playstation-4
PS2 trailer (YT)
DCUO Trailer (YT)
When Sony announced that the PlayStation 4 wasn't going to be backwards compatible or allow you to download current PlayStation Network titles, DC Universe Online players freaked out. Had the hours spent creating heroes and villains in the MMO been a waste?
Today, Sony Online Entertainment has an answer: no. DC Universe Online is coming to the PlayStation 4 -- and so is Planetside 2, the first-person shooter MMO currently available for PC.
PS2 trailer (YT)
DCUO Trailer (YT)