Mapping theme-specific data from one theme to another

Hi there

I’m very experienced with WP, and understand how to import/export data from an existing install to a new one.

However, I have a slightly different question.

Is there a plugin I can use to map theme-specific data like this to a new theme?

Specifically, I have a unique real estate theme, and want to switch to a different one. My question has to do with the existing property listings. So for example let’s say my current theme has a db row called “property_rooms” and the new theme uses “property_bedrooms”. How can I ensure the new theme property listings get updated with the correct data?

Any tips greatly appreciated!