Hello mates.
I think the next arc will be a mission against the navy. Sabo and revos failed to rescue Kuma.Isn't the time for the Strawhats to repay their debt? I think it's the right time. Luffy will defeat an admiral. Propably Greenbull. After saving Kuma, he will join. He will be a perfect addition. Also he would be very valuable to reach the final island. After finding the 4th poneglyph he could teleport them to that place. What do you think?
I think the next arc will be a mission against the navy. Sabo and revos failed to rescue Kuma.Isn't the time for the Strawhats to repay their debt? I think it's the right time. Luffy will defeat an admiral. Propably Greenbull. After saving Kuma, he will join. He will be a perfect addition. Also he would be very valuable to reach the final island. After finding the 4th poneglyph he could teleport them to that place. What do you think?

Been on that theory since day 1.