WRRD is not changing format according to its owner. It's simply changing studio locations and the format is intended to continue after equipment's moved.
http://www.northpine.com/blog/2020/08/21/milwaukee-market-am-station-proposes-major-downgrade/
Regarding from what I heard from their last local shows last week, I thought it would go dark or format change. But they have cancelled all Milwaukee programming (and let go the staff that lives here), closed their east side studios, and will be just a repeater of the Madison station until either the land and/or station gets sold first.
https://urbanmilwaukee.com/2020/08/27/plenty-of-horne-liberal-wrrd-am-to-end-broadcasts/