You may want to save up some money for a cab ride...
Last year we ate at WCC and finished around 9:30 PM. Since there were no parks open, we could not board the busses for the parks. The drivers would not allow it. Two busses came by for the ticket and transportation center that refused to allow people to board. We had to wait 45 minutes for a bus for Downtown Disney to finally arrive. When we got to the market place at downtown disney, the line for the buses for All Star Resorts was unbelieveable. It would have taken atleast 10 buses for all the people to get on line.
I told my husband and son to get back on the bus and we took it to the West Side. Interestingly, there was next to nobody there. We were lucky enough then to get a non-crowded bus that came by quickly. But on the way back it stopped at the Grand Floridian (which had a huge line of people who ate at 1900 Park Fare) During this lengthy detour, they filled up the bus and we finally got back to our resort shortly before midnight.
In short, I had told my husband when we left it would have been easier to take a cab. He agreed it would have been worth the 10-15 dollars.