It would be very helpful, if we could store all the deleted applications (without data) in a Recycle bin especially Managed Space applications along with its community sheets and user's my sheets.
For instance, if an application is deleted by mistake, it will be directly moved to the Recycle bin and the user can restore the application from the Recycle bin. If the Application is no longer required, it can be permanently deleted from the Recycle bin after a period of 30 days. This mechanism helps in easy restoring of deleted applications from Managed Spaces having community sheets and user's my sheets.