JL has released the SEA-NRT J menus and thankfully, it will not adopt the old-style long haul meals featured on the Vancouver flights.
(NRT-SEA menu is still not not release)
It will feature the similar menu as other JL's USA flights.
There will be a typical main meal service after takeoff and then the rest of the menu will on the demand.
http://www.jal.co.jp/inter/service/m...903_201905.pdf
Carfield