Amazon.com have listed Xbox 360 Arcade Console for October 23 release. The rumor says it will replace the Core bundle.
Here’s the new quote from Joystiq.com:
Rumors regarding the new model began springing up last month. The latest information rumor had it that the new version of the Core would come at the end of October and would have an HDMI port, wireless controller, 256MB memory card, and five XBLA arcade games (Boom-Boom Rocket, Pac-man, Uno, Feeding Frenzy, and Luxor 2) on a single disc at the Core’s $279.99 price. All signs point to this Xbox 360 Arcade Console being the Core’s replacement.