What will really happen:
Apple will switch to their own chip for the Mac's which will be compatible with what is used in the iOS machines and it will be able to offer low level just-in-time cross compilation of javascript, java, PowerPC and 68K to give us legacy support. This will unify Apple's programming development and their hardware development.
The new processor, called the SJ1, will be available in five flavors:
1. Ultra low power for sub-portable devices like watches, eye glasses, hearing aids, etc in one core versions.
2. Low power devices for hand held devices and tablets which are currently the iOS category in one to four core versions.
3. Medium power (10W to 30W variable power) for notebook computers in one to eight core versions.
4. High power screaming be-geezy eight to 64 core chip for the iMac, MacPro and new server Sow which can hold eight of the 64 core chips at 2.8GHz each and still doesn't generate enough heat to keep your house warm in the winter here in Vermont.