Sony appears to be planning bundled retail releases for various PSN games, according to an ESRB listing.
The listing (via Gamespot) unveils a Best of Playstation Network Vol. 1” compilation on Blu-ray for Playstation 3; with titles including Sound Shapes, Tokyo Jungle, When Vikings Attack, and Fat Princess.
Two of the four digital titles are available on Vita with cross-buy, but it's not mentioned whether the feature will be included as part of the retail release.
No official confirmation from Sony as of yet, let alone a release date or pricing info. However, the fact that the compilation is labeled volume one certainly suggests that other PSN retail bundles could be in the works as well.