Story highlights Oral arguments were scheduled for October 10

The new restrictions cover eight countries and replace a provision of the travel ban that expired Sunday night

Legal challenges may even need to start fresh in lower courts

Washington (CNN) In an unexpected announcement, the Supreme Court said it will not hear oral arguments on the travel ban as scheduled on October 10.

The court wants to hear from both sides if the issue is moot after the proclamation President Donald Trump issued Sunday night. Those briefs are due October 5.

This is not a ruling about the constitutionality or a final decision from the court: The one-page unsigned announcement simply removes the case from the oral argument schedule for the moment.

Legal experts have said for days that they thought Travel Ban 3.0 might -- down the road -- stop the justices from weighing in on the constitutionality of the travel ban. The justices could reschedule arguments, but it's likely those arguments would focus on whether there is still a live controversy before the Supreme Court, or whether the case should be sent back down to the lower courts to review any changes in the ban.

Solicitor General Noel J. Francisco filed a letter with the Supreme Court "respectfully suggesting" that the justices request supplemental briefs from both sides by October 5 because of the new restrictions the President has outlined. In the letter, Francisco emphasized that part of the March travel ban had expired, and the administration is putting in place new restrictions after a worldwide review.

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