Sony has announced (via the PS Blog) the latest games to come to PS Plus. On Christmas Eve, PS Plus members will be able to download Borderlands 2 and DmC on PS3, and Soul Sacrifice and Blazblue Continuum Shift Extend on PS Vita.
PlayStation 4 owners aren't left out either - Don't Starve hits PS Plus on January 8th.
But make note that as these games enter, so to do others leave: Grid 2, Dragon's Dogma Dark Arisen and Sonic & All-Stars Racing Transformed exit PS Plus on December 24th, and Contrast is no longer a free download for PS4 owners come January 8th.
Remember, if you don't have the HD space for the games currently, purchase the games anyway so they're registered to your account, letting you download them for free at any point in the future.