The M3 has stayed intact for nearly 20 years. It won’t change now.
It stopped being a thing post timeskip. So more or less a decade now.
@OP
Staying implies it's even there to begin with, "the OG M3 will come back" is more appropriate. Remind me the last time Sanji got a proper conclusive 1v1. Ever since the scope has expanded + Supernova have been heavily incorporated into the story, that 123 scheme has been irrelevant.
-Fishman island = gets to flex together with Jinbei
- PH = hype tool for Vergo to prop up Law (in fact the matchups were Law takes the strongest, Luffy 2nd strongest, and Zoro 3rd strongest, on the island)
-Dressrosa = hype tool for Doflamingo
-WCI = Capone shared (if not outshined) the limelight with him, no conclusive battle either.