Realistically ...
Microsoft will focus on the XBox 360 as long as it is reasonable for them to do so. If 2009 starts and it (really) becomes difficult to sell HD development to most third party publishers because the Wii has sold more and is much less expensive to develop for, Microsoft would be forced to release a new console in 2010 because they knew the XBox 360 would (rapidly) die off; if in contrast, Microsoft is able to secure as much (or more) development for the XBox 360 for 2010/2011 as it currently has for 2008 they will (probably) hold out until 2011/2012 to release a new console.







