JL is stepping up the capacity across to JFK and bringing F.
First is a new JFK-HND route. It will be serviced with 777-300's with 4 class configuration.
Second, they are changing the JFK-NRT service to a 777-300 with 4 class configuration, but switching from 2 flights/day to 1.
Also changes to the HNL routes.
They are supposed to change the DFW-NRT route to a 777-300 with 4 class configuration but it hasn't materialized so far.
http://press.jal.co.jp/en/release/201701/004122.html