It seems like you're implying that the ride will also take up TWD's space and TWD won't just be used for queue. I hope that's the case as they will need to combine TWD to fully make this work.
Getting flashbacks of when they tore down HoH.
I think @Chris brought it up, but I would highly doubt that they would be able to connect the new structure and TWDA, due to Frankenstein's structure.