You may recall recently we reported on characters coming to Sonic Runners. Now it seems that was not all.
@BluParadox No, it's not fake. Found today us personally in the game files.
— Sonic Characters (@SAAC_RUS) December 20, 2015
You can see the gallery of images provided by the users below.
Obviously it’s not official word from SEGA so there is still room for speculation. However seeing how these were found within the game files, and seeing how little unused content is actually in the files, it makes things look very likely that a future update will add the characters.
We’ll keep you updated on anything that occurs.