I think there may be some confusion about the new Internal Bus loop. The theme parks bus routes will stay the same, following this route and only making the five main stops (not seven) before heading to the park:
Theme Park --> Grandstand --> Carousel --> Paddock --> Congress Park --> The Springs --> Theme Park
They are adding a new "Internal Shuttle", or a bus that never leaves the resort. THIS bus will stop at all seven stops, following this route:
THV North Stop --> THV South Stop --> Congress Park --> The Springs --> Grandstand --> Carousel --> Paddock --> Congress Park --> THV North Stop
This new internal shuttle comes with a cost, though. Because of the new shuttle, Disney justified ridding SSR of its direct bus service to Disney Springs; assuming guests can take the internal shuttle to either Congress Park or The Springs and walk or take the Sassagoula Water Taxi.
Boats:
The Sassagoula Water Taxi from SSR will take you only to The Landing dock and back. It will not drop you off at the West Side dock.