
Originally Posted by
kagehisa
Here's my theory:
Shanks has been trying to obtain the One Piece ever since Roger died. However, due to the fact that either he is not a "D", or lacks some other aspect, he is essentially never able to obtain the One Piece using his own power. So for a long period of time, Shanks basically hit a dead end.
This is why Shanks got so excited when he met Luffy in the East Blue. We can recall Rayleigh quoting Shanks "I saw a kid in the East Blue that said the exact same things as Captain Roger"...
Through Luffy, Shanks has discovered a way of finally obtaining OP. However, how can a pirate inspire a young innocent child into a life of piracy? Shanks needed to do something dramatic in order to increase his "standing" in the eyes of Luffy.
Thus, he lost an arm. Let's think about this, who here honestly believes that Shanks could not evade or otherwise defeat that puny little "Sea King". Furthermore, giving Luffy the straw hat and instilling in his little childish mind all these grand stories of piracy, Shanks basically brainwashed (Garp's words) Luffy into trying to become the Pirate King.
When Rayleigh asked Shanks how he lost his arm, Shanks did not say something like "oh I was careless so a sea king bit it off". Instead, his answer was "I bet my arm, on the new generation".
The word "bet" implies to me that Shanks made a CONSCIOUS decision to lose that arm, and that it wasnt by carelessness or accident that he lost it.
Now let's look at the current situation. As far as we've seen, Shanks' crew appears to be the most laid-back out of all the high-tier pirates. For someone who supposedly believed in the same things Roger did, and seeks the OP, he sure isnt doing all that much...all his crew does is drink and party all day...he doesn't need to be a Yonkou to do that. In fact, if Shanks's true motivation was just to find a good place and settle down/chill, then he could have just stayed in Windmill village with Makino. Obviously, his continued presence in the New World shows us that he has Higher goals.
Now leading up to the prediction: Shanks realized that he lacked what was necessary to obtain the OP, so he found a way to use Luffy (whom he probably saw as a re-incarnation of Roger) to get it for him instead. When Luffy finally reaches Raftel, we will see Shanks swoop in to claim the OP. Obviously I'm not saying Shanks will be the "Aizen" of One Piece, but there's definitely more to him than just a "role-model" archetype.
Now here's where this post connects with the Blackbeard thread (and the paradigm shift / brainfuck begins):
I think that Shanks may have tried to use Blackbeard in the same manner, prior to meeting Luffy. Blackbeard caught on, and wasn't going to be a pawn on Shanks' chessboard, so they had a struggle and Shanks walked away with a scratch on his eye. I believe that at that time, Shanks should have been able to defeat Blackbeard if he really wanted to. But I think the reason Shanks did not kill BB on the spot, and continues to allow BB to roam the seas, is because he still sort of thinks of BB as a potential "ticket" to OP, in case his plan with Luffy fails.
Thoughts?