I think this is a good news? I mean, the replacement (or non-replacement) can't possibly do WORSE, right? Right? Never mind, they could replace him with a Globalist / Zionist / an all out Japan-Last candidate, I guess.
Ultimately, it's likely just a nothingborger, because he's probably just quitting now instead of getting humiliated in the next election.
https://news.sky.com/story/japans-prime-minister-shigeru-ishiba-resigns-13426477