Greg Street, a VP at Riot, seemed to drop the news Thursday that the company was working on (and hiring for) and MMO.
Street was previously the lead systems designer on World of Warcraft.
Last year, Riot teased a number of projects, including Project F and Project A.
Greg Street, the vice president of IP and Entertainment at Riot, tweeted on Thursday that the company is hiring for a "massive" game in the League of Legends universe. When another Twitter user asked if it's an MMO, Street seemed to confirmed that it was.