Brooke will be the Straw Hat that dies
I was casually listening to "Bink's Sake" and I was thinking about how Brooks is the last survivor of his first crew The Rumbar Pirates. I've been thinking about this a lot and I know everyone feels like Usopp will be the Straw Hat that dies, but I believe it will be Brooke. Brooke already saw his entire first crew die, and it tears him up more than anything in the world. He has been alive for so long, I think the journey with the strawhats let him fill in the full adventure part he missed with his first crew. He knows in the back of his mind with his devil fruit, he will outlive all the strawhats too, unless he actually dies. I don't think he would be able to live with himself if he had to see the same thing happen to the straw hats. Imagine seeing 2 families die in front of you but this time around, their is something you can do about it! For this reason, I think Brooks will sacrifice himself to save the Straw Hats. I just hope he gets to keep his promise to Laboon before he goes.