According to the MTA , there will be Roosevelt Island F Train service

to and from Manhattan this weekend. That’s 15 weekends in a row of Roosevelt Island F train service to and from Mahattan. The last Roosevelt Island weekend F train service disruption was December 16-19, 2016. Also:

E Trains run via the F in both directions between W 4 St and 21 St-Queensbridge Weekend, 11:45 PM Fri to 5 AM Mon, Mar 31 – Apr 3