A listing for Best of PlayStation Network Vol. 1 appeared (and has since been removed) from the ESRB website. According to the entry, the bundle would include Fat Princess, Tokyo Jungle, Sound Shapes, and When Vikings Attack.
Stay tuned for further news, as Sony is likely to make an announcement in the near future about the bundle.
Best of PlayStation Network Vol. 1 appears in ESRB listing
03 April 2013 | By JonahFalcon