Don't worry, your Win 7 will cease to be functional soon, and you will be assimilated. The coming shit-storm of security "upgrades" and bug "fixes", as with previous releases of Windows, will ensure that your system will slow to an unacceptable crawl and reliability will drop rapidly.
I haven't seen anything about Win 10 that makes me want to "upgrade". If anything, my years of experience with Windows have defined upgrade to mean leaving windows behind as soon as possible. Unfortunately, there are still just a couple programs that keep me stuck with Windows. I am always on the lookout for ways to replace those programs and when I find them it will be goodbye MS forever.
I refer specifically to CAD (Onshape looks like a possible replacement that I can run in a browser under Linux), and the software for my 3D scanner (Fuel3D). I'm not real big on the whole cloud thing, but I'll accept the risks involved if it lets dump Windows. I can do everything else I need to do under Linux.
OK, astroturfers, come and get it...