>>Leftists might take it through the Circuit to the Supreme Court, but the bureaucracy (or Congress) can re-write it in the mean time.
I’m not sure they’d have standing to appeal.. the litigants were the states vs the fedgov. The states won and a Trumpian fedgov would agree with the decision.
The way the law was worded even the EPA or any state or federal government entity could not do anything with the declared land either. Never mind private or commercial owners.