I think Microsoft's best hope would be to implement a secret, crash development program for the successor to the Xbone. Have it ready for release in 3 years, and get the jump on everyone.
It needs to be backwards compatible with the Bone...but cutting edge in terms of power/performance. It should be as advanced as a medium-high gaming PC that is available at the same time it is released. In other words, similar to the situation with the original Xbox.
And yes, I am perfectly aware this is a fantasy, and will never happen.
Still, they are going to be f#@ked this generation, given the significant gap in performance between the PS4, as well as the higher price.
MS had a great run with the 360, and were able to match the life-time sales of the PS3, due their complete ownership of the North American market, and having a console that matched the performance of Sony's. This time around, they have a more expensive console with inferior performance...and I don't think they will even win the US / Canada / UK market. Europe and Asia are already a lost cause for MS.
They have been put in a terrible position by Mattrick, and his coterie of talking suits and marketing lackeys who directed the cynical design and feature set of the Bone...gimped the GPU and memory specs, and forced Kinect down everyone's throat.
MS needs to Go Big, or Go Home. Hence my pipe-dream ruminations on implementing a crash program for a new console.
As a proud X360 owner, the situation saddens me. Nevertheless, MS lost their way on this generation...and I applaud Team Sony. As soon as the game library improves, I will be purchasing a PS4.