The PS Vita version of Rayman Legends is finally getting the missing Invasion levels that should have been part of the game with it launched. Ubisoft has confirmed that the patch will be available to download on November 26th 2013, and will also include leaderboard functionality.
The announcement was made via the Rayman twitter account:
Brace yourself for the Invasions! The #Rayman Legends PS Vita update with Invasion levels and leaderboard will be available 26 November!
— Rayman (@RaymanGame) November 13, 2013