Our trip to Jpn is in a week.
I just looked at BR's seatmap. Compared to a few weeks ago, more open seats in my cabin. A bit more on TPAC outbound, a lot more on return.
You never know what this truly means, but I have to think that a significant number of people have cancelled.
I think things are definitely looking better than I'd have expected a week ago. There were 20 cases in Jpn ~10days ago, and it still only sits at 25.