This community-created project, is aiming to become an official TF2 Community update.
The Mayann Project is a community developed project which focuses on an epic adventure in an exotic jungle, in the legendary Mayann Ruins. It will feature a 6 minute movie with your nine favourite mercenaries; a jungle themed map in an epic quest to steal the Golden Idol of the Mayanns from their temple; and plenty of community created content (cosmetic items, maps, taunts and unusual effects)!
Check out the Steam Workshop Collections , there are already plenty of great arts. The Maya environment will certainly make a very popular and fun update.