Today USCIS made the below announcement. My guess is that mid-late June is tentative time frame for receiving your H1b petition that didn’t get selected. I do hope that many of you were lucky this year. But if not, start finding your backup plan until you can file next fiscal year.
USCIS announced May 4, 2015, that it has completed data entry of all fiscal year 2016 H-1B cap-subject petitions selected in our computer-generated random process. USCIS will now begin returning all H-1B cap-subject petitions that were not selected. Due to the high volume of filings, the time frame for returning these petitions is uncertain. USCIS asks petitioners to not inquire about the status of submitted cap-subject petitions until they receive a receipt notice or an unselected petition is returned. USCIS will issue an announcement once all the petitions have been returned.