Revisiting The Wizard's Tower Lore
If we were really going to expand on it, I’d love to see the idea that while the castle itself is fairly large, on the inside it is just as big as Tyria if not bigger (because it is a magical castle :P ). That would give the devs a lot of leeway to incorporate so many different ideas and storylines into one single castle!
This is the very reason they should never expand on it, ever. The attraction is in its mystery – for nearly 10 years players have looked up and speculated and wondered and thought up their own stories. That is something fantasy world builders revel in and nothing they could do would likely live up to the expectations at this point.
I for one enjoy reading people speculate about it and create their own stories about it. I would hate to have that mystery and wonder taken away.
I believe it is a given at this point that the devs will never touch on the Wizard’s Tower. As far as I know, they’ve stated as much too(don’t quote me on that though). Their idea of it is what Randulf has said. The allure of the Tower is in its mystery.