Hi!
We are working on this idea :)
In terms of solution, in the first iteration, we are planning to deliver an API in LifeTime so you can remove tags for an application. Thus, you are able to remove the associated espace version in Service Center.
This could be later orchestrated using the DBCleaner forge component.
Hope this goes in line with your expectations.
We'd appreciate your feedback.
Thank you,
Joao Bento