Ah ha ha ha, glad to see you back Teebin. I don't think your "cave dining" idea would work because as previously stated, J.K. Rowling is so picky about details. I'm sorry to those of you still clinging to hope, but I'm convinced that all of LC is doomed. Mythos will become the Leaky Cauldron (full service of course), Poseidon's Fury will become some sort of indoor attraction (using something similar to Sea World's dome in Wild Arctic, create some sort of true Quidditch attraction? IDK), and Sinbad would become a Gringotts attraction, along with the Arabian section and other space being used for Diagon Alley/London...