This link is good.   I already see many items that we wish for - like recognizing number in app,   best match instead of first match of the targets,  3d objects as trackables, etc. 

How do we know if any of those requests are being planned for in the subsequent releases of Vuforia.

We don't have any announcements concerning Cloud Recognition support for Cylinder Targets. If you'd like to see the feature enabled, please post a description of your use cases to our wish list. 

https://developer.vuforia.com/forum/general-discussion/wish-list

No available news on this at present.