It seems that this E3 was the last E3 in LA; with renovations being done to the expo center moving them out next year and the issues currently with the construction of Farmer's Field it seems that the ESA is looking for possible new locations for the show. The current locations being considered are rumored to be New York, Chicago, New Orleans or San Francisco.
With them changing locations now would be a good time for them to reevaluate the show and it relevance to the market. The glorious E3 of days past use to be as some put “Christmas for gamers” with a barrage of announcements and new sights on the expo's floor. Now the bigger developers and console manufactures prefer using their own channels and platforms to introduce new titles so they can control the message and the exposure the games get the last two E3's have been for lack of a better word flat and unable to recapture the excitement they lost when they “slimmed” down the show.
Since the show is now not a place for the “hot new” announcements they may want to change the show from industry only to a more accessible format such as Gamescom or the Tokyo Game Show has. Where the first few days is industry only with a day or two for gaming enthusiasts to get a first look of what is going to hot in the next few months.
And they may be leaning towards the direction the location of E3 was chosen because it was an industry only event and with the majority of developers and console producers having their headquarters on the west coast and west coast location was the way to go. But only one of the four rumored location are located on the west coast.
New York and Chicago are great places to locate to since both are fairly accessible Chicago boasting one of the biggest international airports and a more “tourist friendly“ and New York while not as cheap as Chicago is located in one of the highest population densities in the US.
Also by opening it up to the public can also boost potential exposure to titles shown at the show, which may help give the show a better chance to be the place that new hot titles get announced at.
Sources:
http://www.latimes.com/entertainment/envelope/cotown/la-et-ct-e3-convention-may-leave-los-angeles-in-2013-20120603,0,2779571.story
http://www.nintendoworldreport.com/news/30664