Wilderness Lodge doesn't share a bus with Fort Wilderness. There is a bus that goes to the Fort and back, but they don't share when it comes to the theme parks or Disney Springs. I would also recommend taking the bus to MK vs. the boat like others on here have said. They come way more frequently and is around a 5-7 minute ride.
I drove to AK when I stayed at Wilderness Lodge in September so I'm not sure about that park in particular but for Epcot and HS expect the ride to be about 15-20 minutes depending on traffic.