DLR could use some better themed restaurants. The idea of dining in the Great Hall sounds breathtaking! I go to the University of Notre Dame, and our South Dining hall always reminds me of HP's the Great Hall. For awhile, my friends and I only sat at the long table at the end of the dining hall. It's raised above the rest and reminds me of where Hogwarts professors sit!
Could you imagine the park having Harry Potter days and changing stuff up like the Villiage Haus as a makeshift Leaky Cauldron? Or how about a special Hogwarts Express train on Casey Jr.?