Following the current trend at Microsoft, it will probably be called "Microsoft Azure for Desktops" :)
I can picture a world where they just host Windows on Azure and you get a thin-client that must be internet connected to use "your" computer. (I am pretty sure this exists in some form for actual cloud-hosted virtual machines, which some companies force their employees/contractors to use, despite the performance issues.)
With its built in abysmalware.