Nope, it's not possible. you can achieve this using a API may be. To find the file and references file and rename all at a time. i remember my collegues have done similar to this for EPDM to convert legacy doc's.
Pack and go will copy the file to any destination you like, such as /My New Part. It can also do a replace on all file names so that the copied files are now MyNewPart.SLDPRT and MyNewPart.SLDDRW. You can also search items in realtion to the directory the are in, say you have a standard components folder where you don't want these files to be replicated or the references alterd, you can search that folder name and uncheck all. It's probably exactly the toll you're after. Especially when you get to lager assemblies.