As someone that was at the protest, at no point did I think it would result in the war stopping. It was still worthwhile, however. In retrospect, the war was so much worse than any of us knew at the time and also based on flimsy and/or no evidence of WMD. Business as usual in America. We'd do it all over again today, I have no doubt.
I think it absolutely laid down the base for the modern progressive movement - mistakenly believing protests do anything on their own
Occupy was huge, it was global and persisted for a long time, but it didn't have any teeth - people just stopped paying attention and eventually police cleared people out
No one (rich) was losing money, no one (rich) felt threatened or inconvenienced in any way. They made their feelings known... But most people had no idea why or what they wanted, and politicians don't actually care what you want. They didn't even organize enough to be a voting block or clearly communicate their message
I wish there was a prediction market about this outcome, as I would gladly bet against it. I don't see America suddenly growing a spine. As long as there is (fast) food available and the electricity and football games are flowing, 99.999% aren't picking up that pistol.