I think it is almost a given that they will send the case back. That alone will be very big for us. But the Apellate Court will also likely remove the injunction.
They could also get pretty specific with instructions. For example, they could tell the lower court that it should disregard a government agency's guidance as a matter of law.
The Apellate Court could also ask the lower court to determine if the FDA's approach to regulating stem cell treatments is arbitrary when comparing it to similar accepted procedures such as extracting blood, removing plasma, and then replacing the blood back into the body.