I don’t think I fully agree with you. A major reset like you’ve proposed is overkill. While HWSW definitely needs to go, and ToT either needs an axing or a big refurb, I don’t think tearing down any of the other rides you mentioned will do the park any good. Wipeout needs a bit of TLC and/or a partial rebuild, but I don’t think getting rid of it is a good idea, especially seeing it’s one of the last of its kind. Buzzsaw just needs to be maintained better and I’m sure it will last a lot longer, it’s still a reasonably young ride. And removing the giant drop would be a huge blow to the park, it’s one of the park’s biggest draw cards and is still in much better condition than some of its other rides. That said I’m not opposed to taking out the gondolas and replacing them with falcons-fury style gondolas.
Before DW start getting new rides they need to fix their current problems. One of the biggest of which is the way they look after their existing rides. They need to start putting in the proper maintainence instead of keeping the rides closed for half a year and then fixing them with a band aid. If you’re waiting an extended period of time to wait for a key part from the manufacturer, spend that closure time to ensure the rest of the ride is in top condition instead of letting it rot and remain unreliable on reopening (as was the case with Buzzsaw last year). They need to stop modifying the rides without guidance from the manufacturer... These unnecessary modifications are in no way making the rides safer, in fact it’s most likely the obvious. I know that Zamperla and Maurer and all the big ride manufacturers are making their rides safe, but when DW start chucking extra seatbelts and shoulder straps and cages on these rides, I find it hard to trust the safety of those rides any more. Dreamworld can build hundreds of new rides but if they don’t fix these current problems those rides aren’t going to last very long. How long are the effects on Sky Voyager going to last if dreamworld doesn’t maintain it properly? If VR can’t properly maintain some of the effects on JL, Scooby, or WWF, I don’t have much hope for DW maintaining SV properly.
Re: a boomerang for dreamworld, it’s no from me. Those things are everywhere and you can get much better small-footprint, cheap rides nowadays (eg a Raptor). I’m not even sure if Vekoma builds their traditional boomerangs any more (only the family ones).