I don't think they will want to go back to a show that many consider 'better' then the Anniversary show, it will just cast it in a worse light. Not to be a pessimist, but I think they will not only not go back to HEA, but will do a 'worse' show. Two reasons - it will put Enchantment in a better light by comparision; and I think they will go cheaper. If anything, Disney has really shown us that everything is about the bottom line. So why would we even imagine that they will spend more on fireworks again?