Note: This is background info for my next Soccer Econ 101 post (part 1 here, part 2 here), which will be on whether or not it's possible to hold onto the most passionate (and frequently younger and broker) fans at the games.
A few weeks ago, Chris from Tacoma participated in a forum for the Sounders Fan Advisory Network. (Full story can be read on the Goal Seattle Forum, here. Registration required. Or a full summary of what was discussed is posted at Seattle Soccer Examiner.)
POSSIBLE CHANGE: Hawks Nest will be opened up. It will not be All Inclusive. It will not be GA; however, they are looking at designating portion of the Nest for supporters and clearly communicating to those around what to expect from the atmosphere. There are 2 concession stands below the Nest that are part of the All Inclusive seating. Experience from the Chelsea and Barca matches showed a way of handling concessions. 1 stand will be for paying folks and the other for the All Inclusive folks.
POSSIBLE CHANGE: The more of the South end is likely going to be GA seating. The newly opened up sections in the South will be GA.
For comparison purposes, here is the current seating arrangement. Current General Admission seating (used mostly but not exclusively by supporters' groups like ECS) are on the right, in light green: Sections 121, 122 and 123. the Hawk's nest will be in the white area on the far left.