Hamister on 26 March 2008
First of all I seriously doubt MS will release the next Xbox in 2009. I'd say October 2010 at the earliest.
Blu-Ray or no Blu-Ray will depend on what route MS plans to take with the next Xbox. Will they continue fighting Sony with a multimedia hub, or will they walk their own path as Nintendo did with Wii?
Blu-Ray is the only option to fight off PS4 as a multimedia hub. Otherwise I'd say MS could go for a proprietary format.
Online distribution is an option, depending on when MS will release their next Xbox.
