I was in a meeting this weekend where this was brought up so I thought I would share what I heard.
First - I was on the fence about this project, but after listening to the EWU admin, I am all in on the gateway project, they really want whats best for EWU.
Right now, as already mentioned in this thread, they are still in the design phase and that should take another 9-12 months. The boards have not yet voted to approve the gateway project, it appears they like it, but the vote(s) have not yet taken place from what I heard.
As far as funding, a major portion is going to be donations. They have a certain number of donors they will be reaching out too and out of that pool there are are a handful of "big fish" and if the Gateway project has any chance to being a reality several of these major players will need to commit.
They also relayed that this isn't just about football, but its going to be a 365 day a year facility. Banks, Restaurants, stores are all interested from the retail side. They would have to move the field 24 feet closer to the current home grandstand to make room for the new section on the other side.
All in all I was impressed with what I heard. It sounds like we are still a few years away and they will need some commitments first, but they are moving in the right direction. I don't think much of my information is new information, but thought I would share what I heard.