Sonic Generations has a release window, and it’s at the end of the year. Sega have confirmed that their celebratory Sonic game is releasing during the holiday season.
Sonic Generations updates and compiles recognizable stages from past Sonic games in high-definition. The game will have both 2D and 3D stages, and you’ll be able to play as classic and modern Sonic, too, both with their own differences.
Update: We missed the fact that the release window was for both Japan as well as overseas territories. Thanks to Tsunayoshi Sawada for pointing it out!