Well the Japanese are pressing ahead with a new fighter and seeking international coooperation.
From the article they seem to discount working with LM on an updated F-22, and also seem to think the USN F/A-XX and USAF PCA won’t be available in the required timeframe - so BAe And Tempest might be in witha shout.
ROFL though at the idea that developing their own will be cheaper than buying off the shelf or that they can get it in service in The 2030s, particularly since they state they’ve been working in their own engine for over a decade and it hasn’t even run yet.
https://mainichi.jp/english/articles...0m/0na/001000c