Automatically deactivate audiences with a new feature

To day we are facing a challenge with the audience threshold. Many audiences is created to be used in offers and Journeys in an AdHoc activity, and is not deleted and not set as inactive. Why is it like that, maybe because it is a to manual routine to remember from day to day. And it could also bee some amount of work if the activity is high every month - remember all audiences been used and who do inactivate or not. To save time and have better control over the audiences in use, and keep us under the threshold we have been looking for a new feature. What if there has been a possibility to set a "end data" when you create a audience (optional) . This date can then be set to be after your activity has ended, and the audiences that shall not be used anymore at this time is automatically set to inactive. This will save time for the users and it will save pressure in the system - by having more audiences in an inactive status.