It's unlikely that the US will force Apple to make EU-style changes. It's been 26 years since the DOJ went after Microsoft and lost, and corporate regulation has only grown weaker.
I have, and I don't believe that higher courts will ever go along with it. Microsoft lost their initial case too, and was ordered to break up at the time. Appeals courts prevent real change like that from happening--see the fate of the recent non-compete ban. Precedent suggests the antitrust cases will end in a small fine or a procedural change, at most.
