Updated international flight schedules for JAL today tell a tale.
https://www.jal.co.jp/jp/en/info/2022/inter/220101_02/
All routes are staying low frequencies through Jan 31st 2022 and the 800X XXX-NRT sub flights are sticking around. We've been shunted on to one for now. I don't think it's a stretch now to say that Japan won't be reopening to tourists until at least Feb 2022.