Now, who said the 4D will catch on? I hope it will, but look at Flashback, the Space Diver design was going to be the next big thing, where is it today? One ride was produced, then never again. As far B&M, they could, but that design and the cars and everything are all patented. B&M, if they do, are going to take there time working on this. Plus, I think they a mainly just working the the "Flying Machine" right now. But who knws, I sure don't, they could have something up there sleeves just waiting. Just wait.