I spoke to my supervisor since I only have two weeks before I expire. She told me if I get approved, a notice will suffice but the DACA notice specifically says it can't be used for employment authorization - I haven't told her this but I knew I wouldn't get approved in time anyways. They will have to terminate me by the time I expire and rehire me as soon as I get approved. It's good to know that they're being supportive but it's hard since there is no way of telling how long this will take.