The fights just about to begin, is there even any point to replace Jack right now? nah, I don't think so.
I'd say the tobi roppo might go after jack or queen, but then the raid happens and everybody just forgets about it and they all begin to fight the alliance.
Its gonna be like the tea party 2.0 where big mom was gonna murder the vinsmokes, but then the assassination attempt and wedding cake crasher happens. Everything after that is just history.
A tobi Roppo replacing jack is an internal matter of the Beast Pirates, I don't really see this plot going very far unless Kaido and the Beast Pirates win the war or are still around after the Wano Arc.