There have been a couple of very good proposals for improving Batch Rename (for instance, see Helmut's recent post here).
But perhaps rename should also be a Batch Convert action?
For instance, if rename occurred "in-line" with other actions, then the user could "export" multiple resolutions (as just one simple example) in a single pass. A "reset all" action could be useful for that. (...and a passive {comment} action might good, too

- {Output 1024x768}
Resize
Rename
Perform All
Reset All
{Output 640x480}
Resize
Rename
Perform All
Reset All
- Rename
Rename
Rename
Perform All
All of the standard renaming options would appear in the adjacent parameters panel for each action.
To accommodate the legacy "Batch Rename" menu option and behavior, the Batch Convert dialog (or tab, my preference) would open in response to the user selecting "Batch Rename", but showing the action list already populated with a single rename action.
A GUI for the results list preview would still be needed, though. Maybe that would go in the output tab?