I can't wait to see more of this. I hope the theming will beat all other themings in other parks.
It's a bit sad though that the nice entrance of Dueling Dragons had to go.
But about the construction, isn't the building below not Hagrids Hut? I'm very confused
The circled item is not a building, but a smaller support or footer, from what I believe was a former structure within the demolished area around the Enchanted Oak Tavern. Hagrid's Hut has yet to be built within visible sight, so there isn't anything to look for just yet. Much of the visible work is taking place near the former entrance of Dueling Dragons. The new entrance itself is covered heavily in trees and greenery to help detract attention from the ongoing demolition and construction work.
I've got some photos to post in addition to the ones Brian posted which should expand on what has been shown so far. Those should be up very soon!