Not sure if this seems too specific, but an additional "path component" in the export persona that will take the filename and add it to the exported filename. So that every time a file is renamed the exported files will carry a unique name without having to rename the slices. The workflow savings would follow as such. I frequently as with others I suppose have base files or starting files that we rework and rename (save as) to a new file. Considering that some of these files have slices already setup, it would save considerable time and reduce a step knowing the exported slices will carry the name of the newly rename file.