At this current point in time, the ACE30 and ACE4710 will continue to be developed through A5(3.X) code as part of the planned lifecycle of those products. Any of the other future products including vACE, RISE, Nexus based Modules, appliances, etc. currently have no ETA, nor has any lifecycle ever been defined as they are not released products. There is also no official Cisco response at this point in time to the rumors of cancellation, holds, etc. despite the hinting of certain articles to "confirmed by Cisco resources" based comments.
Your best avenue for information is to talk with your local Cisco sales representative or account manager. They may have more specific information pertaining to questions at a per-product/per-scenario level. As well, they will have the ability to help you plan your future deployments and designs queries accordingly.
Cisco ANS Escalation Team
Just to be exhaustive; the only source for this rumor comes from here :