Nobody can say for sure due to non-disclosure agreements surrounding program development. The current path forward as I understand it is using cloud-based review tools which may include an "offline" component for desktop users.
Keep in mind that AutoDesk is an aircraft carrier of software. Project goals are established years in advance, so one (or even several) people wanting a feature won't get it added.
Nice... It's kind of funny to assume that Autodesk is that shallow team to force cloud sharing meanwhile companies like apple, Intel, or Microsoft have Intellectual Property as No.1 priority to avoid their sensitive staff bouncing in the "clouds." Cloud idea is just a hard drive space on-line and for sale, like nothing is new. Well, the generation of “old school” of dictatorship must go underwater at any time soon, and you sound like they know the needs but won't do it for some "hidden" reason until there would be the price that right to move on... See what happening with apple OS vs. Android... There is always something alternative if things don't go the right way... Skype’s dilemma found the way for tens of similar software out there. Isn’t it? There must be some easier way to get multi-sheet comparison option available. May be I am asking the wrong people. (No offence)