MS would finally think this is just absurd, so finally decide to make it build 9601, and call it Windows 8.1 Service Package 1 ....(because they had publicly announced that there won't be any Windows Service Pack).
I guess even MS doesn't know yet, and they kept deliberately silent on the topic. If you take bets... I'd say Windows 8.1 Update 2.
Steve Ballmer is not actually CEO of Microsoft (Steve Ballmer demissioned ; resigned) . Actually is Satya Nadella the new CEO of Microsoft.