Well, truth be told I'm not sure what I could suggest. 2013 was a large improvement over 2012, for me anyway. The only thing I honestly COULD suggest is getting rid of the lines to the merchant area or figuring out a way to get people in there quicker.
Having to wait 2+ hours to go check stuff out is kinda bleh. . And having to rush everything on the last day is extremely stressful, when there is so much ground to cover.
While I am not from a far away place (I live in Chicago), a list of restaurants being included would most certainly be helpful to A LOT of people. . Especially folks who tend to stay overnight or try to power through all 3 days of ACen.
The other suggestion I'd say is that while the merchant area was well done this year, part of it was done very poorly. Artist Alley was -extremely- cramped compared to the rest of it. I know it probably cannot be helped, but something should really be done to widen the walkways a little bit. It's almost as if they were designed without realizing that people would stop and look at the booths. . Haha. :P
Oh! While typing this up I thought of one other thing: An easier to read map. . Perhaps with landmarks or something for people to get a general sense of what is where. It's very easy to go in the complete opposite direction of where you wanted to go. . And so you end up being late for panels.
Sorry for the unorganized post. :P