If that happens, then I think premium processing will be suspended and the processing of any application or petition by USCIS will take forever; I think USCIS effectively will come to a halt.
What will happen to those filing an I-751 if USCIS is basically shut down for a while due to a furlough? Will there be any special considerations for those who may have to file during the time the USCIS is operating at minimal capacity?