Xbox's Games with Gold for March 2016 revealed.

The March Games with Gold offering have been unveiled, via an official Spanish Xbox promo, and Xbox One users with Gold subscriptions will be able to snag both Lords of the Fallen and Sherlock Holmes: Crimes and Punishments for free.
On Xbox One, Crimes and Punishments will be available all month, whereas Lords of the Fallen enters the promo on 16th March through April 15th.
On Xbox 360, the first half of the month will offer Supreme Commander 2 pro bono, then it will be replaced with the first Borderlands on 16th March through the end of the month.
Official news has not been released yet but this is most likely all true.