If the 9th Circuit rules against Trump on this then the congress (republican controlled) should specifically REMOVE from the federal courts the jurisdiction to rule on immigration issues (the Constitution provides for this except for the Supreme Court) and then Trump should re-issue the proclamation -it’s a proclamation rather than an EO- banning immigration from the same terrorist countries.
They should, but they won't. A number of the Republicans are against him, also. Trump is essentially a third party President and all of the Rats plus a lot of the Republicans are trying to slow or stop him. This is the so-called uniparty fighting to bring him down.