According to the guys over at Arcade Heroes, they heard for a reliable source that we will be seeing a port of SEGA & Sonic All-Stars Racing for the arcades. The game will be part of Sonic’s 20th anniversary.
It is also said you will be able to link 8 cabinets together for multiplayer fun. This is the first time there has been a Sonic arcade game since Sonic the Fighters in 1996, if this turns out to be true, could be pretty awesome.
This is filed as a rumor until its confirmed by SEGA.