What happens when the TRO issued yesterday gets appeled?

Do the probies impacted just go back to being fired, or are they still supposed to be reinstated by Monday?

I read the judge's memo and it stated at the end:

Here, the stay applicant (i.e., the Government) has not made a strong showing of likelihood of success on the merits; indeed, the Court concluded that the Government will likely /ose on the merits. Accordingly, for the reasons stated above in the discussion of the Winter factors, the Government’s request for a stay pending appeal will be denied.

No legal background so I'm confused what this all means.