Yesterday, the USCIS announced that it was extending the closure of its offices to in person interviews or appointments until May 3rd. If you had an I-485 interview scheduled, you will receive a new notice with a new date.
Earlier this week, the USCIS also announced that for EAD renewals, they will use previously submitted fingerprints instead of requiring new fingerprints (sounds like they watched an episode of Law and Order and realized that fingerprints do not change).
We applaud the accommodations the USCIS is making during this crisis.