Congratulations! You are the lucky winner for being the 800th poster of this question.  Ok, maybe, that's an exaggeration but it isn't far and there's no prize either.

At this point, no one knows the exact date but there are wagers for the exact date (which you can't buy into).  You may also like to subscribe the the IRS' newsletters and check this website for updates: https://www.marketingexpress.irs.gov/systems-status/system-status-mef/modernized-efile-mef-operation...