I wish, but not going to happen I'm afraid. Microsoft desperately want's to create the same walled garden that both Android and iOS enjoy, complete with massively profitable app store. They slipped to a distant third in the mobile market and Windows 8 was a feeble attempt to create a device agnostic OS, a one windows to rule them if you will. The idea was to leverage PC and console users to capture mobile market share.I really wish that Microsoft would bring out a Windows 7 SE (Second Edition). Windows 7 has a lot of issues that need fixing and improving. Windows 10 has been a "can of worms" from the very start. Windows 7 is reliable and works like an operating system should work.
The problem with Win8 was it was designed for mobile use first and foremost since that was the market they were trying to capture. Many PC users rebelled because the new UI was such a monumental change for them. Personally I found it really only worked with a touch screen and that in a desktop setting just didn't enhance my workflow. Reaching up to do something on a monitor felt wrong some how.
Windows 10 was meant to address the short comings of Win8 and does for the most part. The experience is consistent over all devices and desktop use doesn't feel like a kludge fix any more. The next step in creating the walled garden is to now migrate every user to win10. That's why MS has taken the steps of making Win10 a "service" and the last version they'll ever "release". Hell, while they won't admit it, getting a free upgrade to Win10 is still child's play.
In the end MS can't afford to fragment the user base by releasing an upgrade to Win 7. It would be like building a prefect walled garden and then leaving a massive opening in one wall. Win10 is an all in move and I really doubt MS could reverse course at this point, even if they wanted to.