I feel too many characters have loose ends in their character arc to die here. But there must be a moment where this fight is (temporarily) halted. No way we get a conclusion to it before we see how the other fights end.
It's One Piece, I wouldn't hold my breath waiting for anyone to die
But I agree we're going to cut back to the other fights soon. My understanding is that Kabuki plays usually have five acts. Usually Act 3 (which we're in right now) ends in tragedy, Act 4 is the climax, and Act 5 is the epilogue.
So yeah, I think the current act is going to end with it looking like the alliance took a massive L, and then maybe the Grant Fleet will come in with the save in Act 4.