I'm seeing this mostly as fun, somewhat jokey speculation based on the link between the first two rides they chose to show off. That said, if the manufacturer does turn out to be Vekoma over B&M I think it would be a better fit for the park, especially with Diamondback already there. As for the waiver stating B&M, if there was a change in manufacturer I doubt management was just "playing with us". Plans change sometimes. Of course, this is still just speculation for the fun of it and I am still expecting this to be a B&M.