Suggestion for Pro Sites plugin

In the Pro Sites plugin when I set a plugin to only be available and active for a particular pro site level it makes the plugin live for those that upgrade their account, but not active for those that already exist at that pro site level. Keep in mind I do have a 30 day trial setup for the upgraded level for those that sign up. When I set the plugin to only be live for that particular level I would like it to be active for those that already exist at that level.

Thoughts?