For older submissions I think that the best solution is to cancel the old upload and to resubmit the picture
Why?
Changing the title/description, in DM or even within iS, should you want to do so, is far faster.
Would you really want to write an 'imaginative essay' on your images rather than just sticking to the facts?
In addition, what little I'm selling at the moment is old, hardly-sold files rather than best sellers or recent files, but YMMV on that.