Moments ago during the 25th anniversary party, Sega has announced a new game coming next year, Sonic Mania. Developed by Christian Whitehead, this game is the ultimate anniversary present to fans. Update: Modern Sonic fans weren't left in the cold, because a new yet to be titled game featuring both classic and modern Sonic will be launching holiday 2017 for the Xbox One, PS4, and surprisingly, the Nintendo NX. Update 2: Hello to all Ninjas!