The Vita picks up the new action role player Dragon Fin Soup and Invizimals (PSP) next month. That's pretty light, but I'm looking forward to Dragon Fin Soup, however, if you backed that on Kickstarter last year, then you're effectively not getting any free Vita games this month, which is rather depressing.
UPDATE: Dragon Fin Soup is now live on PSN, and with a £15.99 RRP is actually looking quite the deal on PS+, so perhaps not quite a harsh a month as thought - unless you hate RPGs. The game weighs in at 426MB, so won't eat your over-priced memory card.
The Walking Dead Season 2 (PS4)
Magicka 2 (PS4)
Dragon Fin Soup (PS4, PS Vita, PS3)
Mass Effect 2 (PS3)
Beyond Good and Evil (PS3)
InviZimals (PS Vita)