What’s likely to follow the reinstatement of federal prohibition workers since the union sued?

If your you aware, heres a small snippet from Global News

A federal judge has ordered the Trump administration to reinstate thousands of probationary workers let go in mass firings across multiple agencies.

U.S. District Judge William Alsup on Thursday found the firings didn’t follow federal law and required immediate offers of reinstatement be sent.

It mentions immediate offers of reinstatement, but what happens if they dont take it and how is this gonna change the way the Trump administration continuously tries to downsize the federal work force?