Microsoft has filed a trademark application for a new game called "Throne Together," but that's all we know about the project right now.
The Xbox One maker filed the trademark application with the United States Patent & Trademark Office (USPTO) on December 19 (via NeoGAF). Its purpose is listed only as "game software."
The title "Throne Together" could relate to a Medieval-themed game, though of course nothing is confirmed. Microsoft has a number of unannounced projects in the works.
We've reached out to a Microsoft representative for comment, and will update this story with any response we receive.