A truly wild way Microsoft could get around the SFV exclusivity, which is likely to be a lifetime PS4 Console exclusive if it's true that Sony is a co-developer/funding source for the game, would be for Microsoft to allow Windows 10 to be installed on X1 for dual-boot.

You obviously didn't read.

First, there is absolutely no technical reason the X1 couldn't run a full version of Windows as an OS upgrade, to provide an alternate bootup option. Drivers would have to be written, and a few considerations taken with font scaling defaults/etc so that it looks good on a TV, but it is easily possible given the specs and architectures we're looking at. This is NOT enabling full windows on the current X1 OS, this is more akin to a dual-boot idea.

Second, this is a hypothetical 'what would it mean' to be able to run all regular windows programs and games on the X1.

Yeah, but to do it as a reaction to Street Fighter would be really quite silly.

I don't think anyone is expecting it, I thought that was clear in the OP. Hell it's even in the title "and will never happen" :D

That's true. Street Fighter V can stay exclusive, but Street Fighter V Ultra...

So first off, this is so extremely off the charts in terms of being unlikely (for monetary reasons) that it's borderline impossible.

BUT, it IS possible, and would be absolutely stunning to see. So without further ado :

A truly wild way Microsoft could get around the SFV exclusivity, which is likely to be a lifetime PS4 Console exclusive if it's true that Sony is a co-developer/funding source for the game, would be for Microsoft to allow Windows 10 to be installed on X1 for dual-boot.

With full Windows 10 running on the X1, you could run any PC game, including ... dun dun dun : Street Fighter V.

Now it's true that the console CPUs are garbage. 8-core Garbage, but garbage none the less. HOWEVER, they are good enough when the right APIs are in place to produce console-like results. DirectX 12 will turn weak CPUs into passable CPUs on PC.

People here who know me fairly well know that (A)- I'm fair, and (B)- I'm not exactly a big fan of the X1, mostly due to how Microsoft approached it and what their vision of 8th gen gaming was. A locked-down, gaming-is-secondary kind of philosophy that included more advertising than ever funneled in, and where you couldn't even play single-player games without a reliable internet connection. No sense dwelling on that now, but their reversals don't make me trust them, and the BOM budget blown on Kinect resulted in a much slower console than they could have achieved otherwise.

Anyway, the full Windows ability will never happen, because they are instead going to try to push 'App' mobility between their platforms, and leave traditional Windows desktop applications behind. Essentially they are chasing the world of Apple and Google getting cha-ching cuts of every app sold on those devices, whereas anyone can write a Windows desktop program and not give Microsoft a dime. Spoiler : it won't work. Microsoft makes their bank from Windows desktop, Windows Server, and Microsoft Office. Everything else is comparitively a failure economically to those massive profit centers.

So think of this as more of a wild thought experiment, and what a funny world it would be. IF they went that route (or some genius level modders achieved it), it would be extraordinary. The library of games available would be absolutely ridiculous as that point, to say nothing of being able to run true desktop apps.