I believe that Eustass may be a D. Just a theory, but i have a decent amount of tentative evidence to back it up.
1. "D's are connected by their fates". Tralfagar D. Water Law, Monkey D. Luffy, and Kidd all happened to end up being together in the auction house when luffy attacked Saint Charloss. (And on Sabody Archipilago for that matter) Also worth noting that rociante stated that D's are the natural enemies of "God", most likely referring to the Celestial Dragons, and both Law and Kid smiled when one was attacked. Since they are all rivals, they are fated to battle in the new world before the end of the series."Let's meet again in the new world" -Kid
2. A strange occurance i picked up on in the anime. Each time this has happened, somethin…Read more >