Most of the extra material is being generated not just from the appendices, but from within the text of The Lord of the Rings itself. "Especially for characters like Radagast," she said.
Could we possibly see a return of fan favourite Gollum? "Gollum's not currently scheduled to come back in the second and third movie," said actor Andy Serkis. "But the fact of the matter is, never say never with Peter."
Check out our theories on how the story of The Hobbit will be expanded here, and keep an eye out for our review early next week.