USCIS Updated on April 12th, 2016 that they have received over 236,000 petitions for FY 2017 quota and the lottery was completed on April 9th. As comparison of last year for FY 2016 quota, FY 2017 quota has 3000 more petitions.USCIS will reject and return all unselected petitions with their filing fees, unless the petition is found to be a duplicate filing.As announced on March 16, 2016, USCIS will begin premium processing for H-1B cap cases no later than May 16, 2016.
More information, please visit:
https://www.uscis.gov/news/alerts/uscis-completes-h-1b-cap-random-selection-process-fy-2017