So is the hut going to be themed as ruins too?
As for the timeline of this ride, personally I think it makes more sense for there to just be ruins in the forest. Hogwarts is fine. It's over next to Hogsmeade. You can see it. It's the most impressive visual part of the whole land. Obviously they could set this ride after the battle of Hogwarts. They could make a second Hogwarts for this ride, and a second Hagrid's hut (both in the form of ruins) but then the whole ride exists in its own separate timeline from the rest of the park, and ofter you ride it you get to go back in time to an era before the battle of Hogwarts when everything was fine and there were gift shops everywhere.