BOJ keeps monetary policy on hold. My guess is that, for now, they'll just proceed with small off-meeting tweaks (tightenings) and save regular meetings for any bold decisions (easings). What moved USD/JPY overnight was news of North Korea steps to commit to denuclearization and thawing of the relationship with the U.S. Trump is said to accept Kim's invitation for a meeting. It shouldn't be too much of a surprise if the two go on to become best friends after all.