Description of problem:

As a user of subscription-manager, I would like a means to show ALL subscriptions which start in the future. 

Today, subscription-manager has the '--ondate' option, which provides (from the manual)


"Sets the date to use to search for active and available subscriptions. The default (if not explicitly passed) is today's date; using a later date looks for subscriptions which will be active then. This is only used with the --available option."


as a user there may be multiple subscriptions with differing start dates in the future, and I'd like to be able to show them all without needing to know an exact date that the subscription begins on . 

I am envisioning a command similar to 

subscription-manager list --all --available --after=YYYY-MM-DD


which would show all subscriptions which have a start date after the user-specified date. 

This would allow a user the easy means to show (for instance) 'any subs that start _after_ a renewal'