Dave, concerning your first post above you made a comment that I have seen expressed by several others:
“Sure, future versions of AE — and probably other Adobe products as well — will allow users to backsave to CS6. But how long is THAT going to last? There are no guarantees: think 128-bit processors, for starters.”
I recently had an email conversation with Kirsten Harris, Director, Adobe Global Services, in which she said the following:
“While the new After Effects and Premiere Pro CC don’t allow to save files in a CS6 format (Photoshop and some other applications do), a project created in CC can be opened in a newer versions if you later renew a monthly or annual membership. This has always been the case for our applications and isn’t new to the Creative Cloud.”
So then, according to Adobe we will NOT be able to open AE and Premiere Pro CC project files in CS6. It is apparent once again that a subscription will have to be maintained/renewed in order to work with any projects created in the new Creative Cloud versions. The fall back of having a perpetual license of CS6 is essentially useless (at least for AE and Premiere).
Hope that helps clarify what we all see as an important aspect of this conundrum.