The core of the argument is did the administration violate the APA process to end DACA? Most federal courts have come to the conclusion that they(the administration) did, hence DACA has remained.

The foreboding issue, should the Justices enter a judgement of how the process should have happened, the President(current administration) can then follow that process to end DACA formally. I don't think anyone can anticipate how the current court will rule.

Still, there is nothing stopping a new administration from reinstating the program if it had a formal end. I garner there shouldn't be a surprise if a lawsuit follows on if it can be re-instated lol.

Prepare for the worst, hope for the best.