Did the original program go through the federal rulemaking process with commentary period? Nope.
Are there still lawsuits from numerous states objecting to the original program? Yep.
I honestly think this will be a SCOTUS slapdown about national injunctions and will vacate the injunction and return it to the lower court to proceed with trial. With 3 descenting votes and a long drawn out opinion by Sotomayer about the whole dreamer program, and a concurrent descent by the other two about how national injunctions are good.
The only legitimate ruling the Court should make is that the Trump policy was an administration policy ending an existing administration policy. US courts have no business creating an authority that a current administration has no authority to cancel a previous administration’s policies.