If Tsuji (likely) wins the IWGP belt at WrestleKingdom, the Global and World Heavyweight championships should be merged, and the Never Openweight should be elevated to the proper #2 belt in tbe company.

It seems like a no brainer to me.

Having two belts implicating "world tier" didn't really make sense, outside of the "Intercontinental" but that's already merged into the top belt.

Introducing any other championship in the meanwhile wouldn't mean much, and in line with Japanese wrestling's trend of using weight classes for its singles titles, and with the Junior Heavyweight championship having considerable prestige on its own, leave it as is in the hierarchy and elevate the Never Championship to be alongside it as the proper secondary title with a good redesign. It has plenty prestige as well, and its holders deserve their flowers.

No need to introduce another belt like the US or Global.