Just thought I would suggest a listen to Dane's Theme Park Life's podcast interview with Greg on the Motocoaster topic. He directly asked Greg about the future of Motocoaster, and while obviously Greg confirmed nothing specific, he did clearly state that plans for Motocoaster are front-of-mind for Dreamworld, and that they eventually want to incorporate either the ride itself or the land into Rivertown.
Greg discussed wanting to set the park up well for the future, and considering the approach that was taken with King Claw, which he directly refers to when answering the Motocoaster question, I doubt that involves keeping the ride around in its current state. A 20-year-old Intamin prototype with a laundry list of operational issues is not exactly something I'd say is a good asset for the future of the park. So I think judging by his answer to that question, the very least we can expect is a substantial overhaul of the ride when the time comes.
And considering that The Claw was considered end-of-life at 20 years old, when it's an Intamin product that isn't a prototype and doesn't have a totally one-of-a-kind restraint system, I think we should keep an eye on that part of the park in the next couple of years or so.
Moto conversation occurs at about 31:30 in the episode if you want to skip to that specific section. Dane has actually had Greg on his podcast twice and both episodes are thoroughly worth a listen.