I think if the development went with continuum then it could possibly be more of a possibility, phone screen off, 1 file running under emulation, keeping the phone temperature down,power supply and of course if they manage to solve this emulation then a full screen could be used, notepad for example would not interest me but paint.exe would, some other programs like the chess program I mentioned I could use, something I just though of, perhaps the dock itself could be a dedicated emulator or contain x86 instruction capability combined with the phone innards ??
edit>> The more I spend time thinking about this the more I think it might be a silly idea, I will also contradict everything I wrote above, I think that unless the phone can run the x86 somehow standalone,? then its a waste of time, what would WOW us is this feature (if it worked well enough)If you need the dock and the big screen then chances are you are at home or the office, where you have your laptop or PC there anyway, we all want BANG for our BUCK and having a powerful phone sized device would be amazing running x86 within reason, sometimes you don't want to carry your laptop around but you always have your phone on your person (well I do anyway) if I could run some x86 files I would be happy and also understand that AutoCAD or the like would likely never ever run on a phone, that's obvious, however if a powerful enough device could run x86 and was no bigger that a Galaxy note sized device with W10M I would be seriously interested. I like windows10 Mobile and its an exciting future ahead.