There have been some big changes to DragonCon this year. I just received info from my staff contact, and here are the big changes so far.
1) Registration is being moved to the Sheraton this year.
2) All Star Wars fan tracks along with Star Trek and a few others are being moved to the Sheraton this year.
3) Fan tables have been split between the Hyatt and Sheraton.
So it looks like people are going to be hoofing it quite a bit this year.