DB stated last week that this Tuesday's expected release date was in danger, yesterday he has just reconfirmed that. If FD need more time to get it right, then so be it. My feeling is there is a small chance it could get squeezed out on Tuesday, but probably a 10PM release like a few of the Alpha/Beta releases from 2014.
I seem to remember one releasing at 23:59 or there abouts. At least they still hit the release day.