Other Ubisoft collections--Rayman, Splinter Cell, Tom Clancy--are also mentioned by Jeux Video, presumably all supporting 3D like the Prince of Persia Trilogy.
Based on previous reports, the Mortal Kombat "kollection" could include versions of Mortal Kombat, Mortal Kombat 2, and Ultimate Mortal Kombat 3, which is backed up by the supposed box art. The box art also shows support for 3D.
Re-releasing games in these collections is a strategy Sony is pursuing with its properties, having already released a God of War Collection and confirming Ico and Shadow of the Colossus releases at Tokyo Game Show 2010. Sly Cooper will also get a bundle, with The Sly Collection coming in the fall with Move minigames and updated 3D support for Sly 3.