#80 SONIC CD XBOX LIVE Trailer: Prequel to Sonic 4 Episode 2?

#80 SONIC CD XBOX LIVE Trailer: Prequel to Sonic 4 Episode 2?

Does the trailer suggest that this will lead into the next episode of Sonic 4? Or are we reading to much into it? With Metal showing at the end of ep1 and now this, it would seem they want to jog out memories for episode 2.

Also with it coming out on every platform this is surely the work we heard ages ago from Taxman back 2009!?  Thoughts?