After months of waiting, we finally have confirmation that Guilty Gear XX Accent Core Plus will indeed see a digital release in North America, as well as Japan. This news comes via Major Nelson's blog. The source confirms that the game will be available for the Xbox 360 on October 24th, the same day that it releases in Japan. Sometime after it releases, an update will be released to bring the game up to Plus R specifications.

Unfortunately, I could find no similar confirmation of a PS3 release of the game, though that could probably be attributed to the source. I'd be surprised if it wasn't available for the PS3 on or around that date, considering it will indeed hit the PS3 in Japan. Guilty Gear XX Accent Core Plus will cost 1200MSP.