A trackless RV with base hidden at load would be perfect. No need to hide tracks and no need to invent gyrosphere technology for real.Well, that's the thing, isn't it? Do a gyrosphere ride "for real," and the potential upside is enormous. Do it via... other methods... and I don't see it topping River Adventure.
I do NOT want a screen based simulator ride, not at all, under any circumstances. I want something visceral and tangible.
Make it indoors for completely controllable experience (and longer lasting dino skins.) Or do it both inside and outside if you dare. But please please please make something that moves through scenes and has AA figures. Regardless of how the sequels do, you'd have a timeless hit on your hands.