Flexible filename increment sensing / alphabetic increment versioning/ increment templates

Practices vary but I increment my file names with the date (YYMMDD) plus a letter, eg "TruckBody200511a". For any given day that gives me 26 versions names, more if I emigrate to Russia!

This is truly first-world stuff, but it'd be swell if Blender optionally detected the final character in a file name and incremented the filename alphabetically if it were a letter.

There's too much variation in date presentation to ask for this only after a date, but like I said, it'd be nice. Perhaps the proper way to go is to have a template that is optionally defined in Preferences, so as to please every shop's practice.

(I use a numerically incrementing addon , but sadly it doesn't detect leading zeros, so it's a bit awkward.)