Windows 20XX
The version of Windows where Microsoft replaces the Windows Kernel is fully replaced by the Linux Kernel and Windows just becomes another Linux distribution with a fancy Windows skin. WINE and Powershell will also be integrated out of the box to try to convince people it is still Windows.
Person 1 "Wow can you believe Microsoft finally made Windows stable with Windows 20XX. I haven't had a blue screen in weeks!"
Person 2 "That's because you're using Linux."
Person 1 "What's Linux?"
Person 2 "BTW I use Arch."
Person 2 "That's because you're using Linux."
Person 1 "What's Linux?"
Person 2 "BTW I use Arch."