Makes you wonder what part of the term Illegal (as in the country illegally) does a federal judge have a problem understanding? Time for these judges to go by any means at hand.
There are two parts to what Obama did with DACA. The first was to issue guidelines to DOJ to exercise prosecutorial discretion and not prosecute certain people who are in the US illegally (aka dreamers). The second was to set up an administrative procedure for registering these people.
The judge ruled that the administrative procedure could not be abolished except by following certain rules.
Trump can easily say “Ok, anyone who wants to apply for the DACA permit is welcome to. But I’ve directed the DOJ to arrest and deport anyone in the US illegally, and will post agents at the doors to where DACA permits are submitted and arrest and deport every illegal immigrant coming through those doors.”
The DACA application process is a magnet for illegals, and Trump can start deporting all DACA applicants, while not technically abolishing the DACA applications.
If an application is posted by mail, sent agents to arrest the applicant and the address they so kindly put on the DACA application - it makes the job easier :)