Yes and what I am saying is if they can add a offline mode, and restrict this too offline characters only... they "could" store the offline data locally on the players PC.
But why would they -
it's an MMO.
...here's the thing. What you're asking for is kind of like asking "Will there be an FPS mode implemented as well?" about Madden 2012.
Of course there won't be a shooter mode made for the football game. It's a football game.
MMO. The "O" stands for
Online. It's a core feature of the concept. Yes, it's going to be online. No, it's not going to be offline.