no luck finding R class fare for 787 LAX-NRT

I'm planning a trip from LAX-NRT in April, but looking at different dates, none of them return showing R class fare being available. I have a couple GPU I would like to use, but I'm not having any luck finding a flight that have availability.

Are there R class fare available for 787 LAX-NRT at all? or is it something that might open up closer to the flying date?


thanks