According to the MTA Weekender:
Image From MTA Weekender F Line
F Coney Island-bound trains run via the E from Roosevelt Av to 5 Av/53 St Weekends, 11:45 PM Fri to 5 AM Mon, Oct 21 - 24 • Oct 28 - 31
Trains resume regular service at 47-50 Sts.
No Coney Island-bound service at 21 St-Queensbridge, Roosevelt Island, Lexington Av/63 St and 57 St.