UPDATE: Harmonix has just announced Rock Band Blitz for XBLA and PSN. The list is now looking more credible. Thanks, Cola and Aptiva!

Original article:
What is believed to be a leaked list of upcoming Xbox Live Arcade games has appeared in a post at popular forum NeoGAF. Many already announced games are featured in the list, like Sonic the Hedgehog 4: Episode 2, but there are some unannounced games, including Sonic Adventure 2 and Rock Band Blitz. The first Sonic Adventure game is already available on XBLA, so it would only make sense to re-release the sequel, too. As for Rock Band Blitz, Harmonix has recently stated that they are planning to announce their next game at PAX East this week, so could this be the new game?

The credibility of this list will rest on Harmonix’s announcement. We’ll let you know of any further developments.

You can view the full list of games after the jump.
Continue reading [UPDATE] RUMOUR: Sonic Adventure 2 Coming to Xbox Live Arcade?