Hi,
You can certainly do that with an Auctiva Saved Listing. You can duplicate the listing from the icon for that purpse to right of a listing on the page, and then edit and save/submit/schedule; or you could edit a listing, make the change, and save/submit/schedule a listing. The former makes multiple saved listings. The later just keeps the same basic listing going with description changes (if that works for you).
If a relist is necessary on any/all, just use the relist capability from the Closed listings page or use Auto-Relist Profile to really get things moving.
Danno