USCIS will continue to premium process H-1B Extension of Stay petitions filed with Form I-907 premium requests prior to May 26, 2015.
This temporary suspension will allow USCIS to implement the Employment Authorization for Certain H-4 Spouses final rule in a timely manner and adjudicate applications for employment authorization filed by H-4 nonimmigrants under the new regulations.
Read more at http://www.uscis.gov/news/uscis-temporarily-suspends-premium-processing-extension-stay-h-1b-petitions