I would love that too. It would require re modification of the trough though. They sliced through part of it for the new exit station for Charlie. Easily fixed I guess though.
These pics show it nicely. This straight bit of track is the exit platform for Charlie and I assume the Dungeons now. It cur off the corner which formed part of the 'Toyland' scene. (The one with the train).
Or as seen on the plans here. The arrow is looking in the direction of the camera in the photo above. You can see how the new piece of straight trough, cuts off the corner.
One more, at a slight angle. Showing the gutted Toyland and Party Room scenes. Along with the 'new' and current exit platform.
The train travelled on it's track almost exactly where that yellow pole goes into the ground in the photo immediately above.
Not the hardest to revert back to the original layout I guess, as most of it is still there.
Look at that plan, there would even be room to slightly extend the trough, into the bottom right of the original show building. That bottom corner, (number 11 on the plan) is where Doom & Sons was. I think it may have even slithered up the side of the building to where number 10 is. This is why even the original boat ride did not go anywhere near those areas marked on the plan. That could all be used if they refurbished this.
That leaves a bit of room for a slightly longer boat ride, while not going outside the perimeter on the original building. I can't be too expensive to cast some concrete trough.
Photos thanks to TS, and ATA.