The Borderlands franchise could be made available in a compilation set soon if a rating posted by the Film and Publication Board of South Africa is any indication.
Dug up by Gematsu, the product in question was filed with the South African board in April and just recently made public. The rating in question is for something called The Borderlands Compilation: Pandora’s Box.
Details on Pandora's Box were not provided, but a compilation could include just about any game that has the Borderlands name attached to it.