Not sure what HMUS is but when it comes to Alien Encounter, was it really a "show" or more of an attraction? One can take it further and question whether Shrek was a show or an attraction? Could they create an "original" attraction storyline that is loosely based on the premises of jekyll/hyde? We are in luck as today the village doctor has created a serum that does blah blah blah and he is inviting us to witness the remarkable first public showing of it. He proceeds to test it on a small animal subject and its successful then he does the unthinkable and states hes gonna now test it on himself which he has never done. He states how he isn't sure how stable it is for a specimen of his size/human but he believes in his research. He takes it then all hell breaks loose.
Then it turns into an Alien encounter style attraction/show/??.
We can get a new attraction and an original story/character that kinda exist in the monster universe, but universal version.