Outside of vivi I doubt they'll be anymore senior officers but creation of them opens up the possibility for more to join. With there being an unofficial official separation between Strawhats who are senior officers and those who arenโt. Luffyโs officers being made up of only characters luffy met pre aceโs death and the rest after he returned from his training
Vivi possibly being considered an officer once she reunites with the crew. She was already a strawhat lowkey since alsbasta anyway + her eating the paw fruit makes it even more official.
Also yes I'm also on the vivi eating the paw fruit theory. It fits in story lore wise and out story meta wise with it finishing the devil fruit theory
After vivi it opens up the possibility of other characters with other fruits that have nothing to with the number theory and nothing to do with pre timeskip luffy
Characters like Yamato, momonosuke, kinemon, carrot, Tama, and other characters I can't think of can join later as official strawhats but they won't be senior officers
Vivi possibly being considered an officer once she reunites with the crew. She was already a strawhat lowkey since alsbasta anyway + her eating the paw fruit makes it even more official.
After vivi it opens up the possibility of other characters with other fruits that have nothing to with the number theory and nothing to do with pre timeskip luffy
Characters like Yamato, momonosuke, kinemon, carrot, Tama, and other characters I can't think of can join later as official strawhats but they won't be senior officers