They still have the late buses back to the resorts from the Boardwalk. I arrived at the Boardwalk bus stop about 1:15 am and a bus came along and picked up several of us waiting. We were all asked where we were going. I was going to Fort Wilderness. Some of the folks were dropped directly at their resorts, and I was dropped at Downtown Disney, then given a van ride to Fort Wilderness.
There was lots and lots of radio traffic on the bus on coordinating getting all late night folks back to their resorts from various locations.
As to getting to Jellyrolls, I would recommend going to Epcot or Studios for awhile then walking or boating over to the Boardwalk