He's not President yet and he hasn't done anything in respect of DACA. We don't know what he'll do, the only thing we have is what he has said he will do and even that doesn't guarantee that he'll go through with it. This guy has no convictions and has said many things and taken back too.
The worst is that he cancels DACA. That in itself will take weeks if not months to implement. And very likely we will have our work permits until they expire.