Hardlight Games, along with Sega, have sent out the image above to the masses via their Twitter and Facebook accounts, hinting at the return of the Sonic Dash sub-series. Sorry, this is not the Shenmue 3 announcement you are looking for.
Sonic Dash is a variation on classic Sonic gameplay, and functions as an endless-runner platformer. The game was originally released for iOS devices in March of this year and the similar font in today’s newly released image seems to indicate that an announcement of the game’s release on Android is imminent.
Sonic Dash‘s vertical-platformer counter-part, Sonic Jump, was developed for both iOS and Android by Hardlight Games and released last year.