According to Whatsonstage.com, the Broadway hit THE BOOK OF MORMON might make a transfer to the West End next year. Baz Bamigboye recently revealed the actual opening date will depend on the availability of Parker and Stone, who are working on the 15th season of South Park. They will need to be on hand to help shape and tweak the West End show.
SOURCE: BroadwayWorld at 12:17PM on April 15, 2011