Enhanced duplication idea

We just had an issue where we have been trying to catch up on some duplications that have been experiencing some slow throughput, and several images expired while the duplication was trying to catch up.  While the throughput issue is out of our control, we still have to deal with the duplications down here in the trenches.  There are probably other ways to manually do this (bpcoverage, then extending the expiration date of the images returned from bpcoverage), but I think it would be nice if there was an option in the duplication set up to hold the expiration of images that have been selected for duplication until the duplication was complete.  

For example, the Monday duplication job selects 10 jobs for its list of images to duplicate.  For whatever reason, we are 10 days out and the duplication still has not caught up (due to other duplications that were behind, and the dups just keep falling further behind).  It would be nice if the dup job held onto the images until it was completed, then once the duplication has completed, it expires those images.