Intel is in trouble since they lost their cash cow which is Apple. They can come back on top? Yes, sure: five years ago AMD was considered essentially out of the game. Will they? Well, if they aggressively pursue R&D like AMD did...
Don’t underestimate the ability of ARM becoming a viable desktop platform for Windows and Linux in the near future: all that would take is someone designing a modular, user replaceable ARM combo instead the usual SOCs and voilà. Windows already can run on ARM. Risc might be the future (which would fulfill its goal, since it’s a more modern/efficient paradigm).