If you can keep a spreadsheet of the "from-to" Publisher rules, then there is a tool that you can use to quickly change any "from" to the specified "to".
Job Spy has a tool named "Import CSV to Update Metadata".
https://www.mobileread.com/forums/sh...42118#poststop
See the attached image.
Simply create a spreadsheet (CSV) column named "Old Publisher", and a column named "New Publisher", and copy/past your rules into your spreadsheet. Save-As a CSV File, and import that into the above named JS Tool. "Match" on "Old Publisher", and update Publisher from "New Publisher".
Run as often as needed.
DaltonST