Universal Studios has released new details about their Diagon Alley expansion! If you don't have 20 minutes to watch the full webcast, here's the short version:
Diagon Alley will feature tons of shops, including Madam Malkin's Robes, a three-story Weasley's Wizard Wheezes shop, the Magical Menagerie, Quality Quidditch Supplies, Scribbulus, Wiseacres, Ollivander's wand shop, Borgin and Burkes, The Leaky Cauldron, and Florean Fortescue's Ice-Cream Parlour.
On the ride side of things, the park is getting "Harry Potter and the Escape from Gringotts," which is described as a "multisensory, multidimensional journey through the Gringotts vaults." You'll also be able to ride the Hogwarts Express over to Hogsmeade.