The Pirate Shanks wanted to talk about
After after answering the first question it’s time to answer the 2nd question. Who is the pirate Shanks wanted to talk about? The first one who came in my mind was Blackbeard.
Shanks fearing the one who is the suppose to kill him would fit right? But what bothers with that answer is the time. Why did he want to warn the Gorosei about Blackbeard at that moment and not before? That’s why I start to doubt it was Blackbeard. But if not Teach who else? Well the answer is simple Luffy. I mean right before the Whole Cake Island accident happend and Shanks saw this a sign that their meeting will happen soon, which would be the moment Luffy have become the Pirate King.
I think he wanted to tell the Gorosei that he himself will take care of Luffy. But what would that actually mean? I think once Luffy found One Piece Shanks will appear and I think Shanks sees his successor in Luffy, the one who will become the next Keeper of Balance like he became the successor of Roger.
But we all know Luffy is the kind of guy who will want to change the world. That’s why I think Shanks will either test him if he is really the one able to change the world or really try to stop him (I mean angry Shanks was hyped). Both possible, but I really start to believe Shanks vs Luffy will be Luffy’s first fight as Pirate King.
*Theory by Nessos