I was looking at this hotel. It seems bookable starting at around 50K JPY so around the price of the W.
No idea how many points it'll cost yet but at that price point, I'm hoping I can top up a 35K cert to try it out later this year.

On paper, it looks even better than the higher priced St. Regis. But that is assuming I can get a suite for 50K points and a nightly upgrade award.