One Piece Oro Jackson will be Luffy's last Ship

I think Luffy will meet Rayleigh again or he will meet someone who was told to hide Oro Jackson by Gol D. Roger. I think Thousand Sunny will break not in the same way as Merry, maybe through a clash with his enemy. So he then gets Oro Jackson from the person I mention in the first sentence. That's rare to happen due to Franky's dream...

Or Sunny will have a SUPER BIG upgrade.