There being many reasons to update the text on a cover, one finds that the fact that the use current cover option produces 2 sets of text annoying. (normally a disconcerting accident) - I normally track down the art originally used and redo from scratch - but this is not always possible.
It occurs to me that an option to use the existing art while replacing the existing text with a new version might be possible, although I've no idea how practical it would be, so I thought to suggest it as something worth considering.