I think when the time comes the miners are all going to come out and backout out of this due to not really supporting the cause and being unable to support it as a whole. They did this to do something, maybe move the market a bit or stabilize the price but it isn't going to last to AUG 1st when people find out they weren't being serious.

Why would the miners want want to change anything, they could just stay the way they are and reap in the TX fees and just sit here with no change in sight while the fees get higher and higher.

I don't think it's going to get activated, ever.