Planet Wisp (Sonic Generations)

Planet Wisp was a stage in Sonic Colors, and is returning as a stage in the upcoming game  for Sonic's 20th Anniversary. It will appear in the Modern era of the game as the last regular stage. Wisp powers will be usable in this stage, according to Aaron Webber on the Sega forums. So far, only the Rocket and Spike Wisps have been confirmed. Enemies such as the Egg Pawn are likely to return.