I think it would be two different rides per say like coasters and track rides are. I would then like to see them add/change/improve;
- free-form construction for different angled slopes
- slider bar for different widths of track as such where applicable similar to how paths work
- the icons at bottom for different special pieces again like the coasters (rapid area, whirl pools, slide shoots etc etc)
- recolour-able track and boats
- Auto tunnel working fully
- Snap to terrain or similar so that it carves out the terrain around it better
- place in water at correct level
- different boat types for different themes
- collision off so we can place things in the track
- collision on for the boats though so that we can have rocks that the boats bounce off for instance
- options for different drop pieces so that we can create a double hill drop for instance
- Stations options as shown in other threads
- water guns that other guests can use accordingly
I am sure there is more but those are all things that appear to be overlooked, not working, can't be done at time etc that I would like to see happen.