I don't think Apple will be switching to Intel mobile processors anytime soon. Intel is unproven in the mobile sector as far as phones go, I can only think of one maybe two companies that have used their chipsets and I'm pretty sure none of them are available in the states. Also, I think Apple is keen on designing their own chip sets so they are not beholden to someone like Intel, who are responsible for the delays in any significant update to their laptops because Intel couldn't keep Broadwell on track.
samsung makes apple chipsets atm,
go to 22 minutes for the part about apple switching to intel https://www.youtube.com/watch?v=d-5RUv_d1hI