There's a post on Reddit claiming the GWG for March are Rayman Legends and #IDARB for XB1 and Tomb Raider and Bioshock Infinite for 360. Says the source is Expert Zone so I have no idea as to the validity.
Also says that April will have "twice the free games."
It's a damn good game. The comedy, the cut scenes, the voice acting, the simplistic yet deep gameplay, the epic, almost medium elevating score. It's just a damn good game and it disappoints me to see people who didn't understand crap all over it.
In the image posted, it said specifically "To celebrate, we're giving customers more of what they love by doubling free games in Games with Gold for April! You read that correctly... in April, Games with Gold will offer TWICE the free games!"
They have been offering four games per month and they said they're doubling that in April, 2x4 = 8. Rayman Legends will likely carry over into April. Will it continue past April, I am 99.9% sure it will not. They said they are celebrating 100m+ GwG downloads.