I agree that they're not likely to do a full abandonment of the Windows stack, it still makes money for them so why mess with a good thing? I think more likely

I agree that they're not likely to do a full abandonment of the Windows stack, it still makes money for them so why mess with a good thing? I think more likely is that as Azure expands they'll try to make more money off of that platform and use Windows (desktop/server) as their supplementary income which in itself is a big gamble IMO.