I doubt it unless there is an underlying change in global purchasing or MS changes tack for their next console. So far as I see MS is locked into having a console that has high specs, required to deliver ever better graphical versions of Halo, Gears, Fable, etc.
Every generation seems to be won by a console that is not at the edge graphically/specs but captures the middle ground and general purchasers (something both Sony and Nintendo have done, and I believe could do again).
For two generations MS has shown growth, but has shown no real ability to capture the general consumer. I see no evidence to believe they stand a better chance than Nintendo or Sony of doing so next gen.
If MS really wants to win the next gen I think its going to really have to consider the specification/cost of the console vs the level Nintendo (and I suspect Sony) too are likely to aim for after seeing how this gen is playing out.
Try to be reasonable... its easier than you think...
