Don't be too surprised when, not if, all that happens is Vucic gets replaced with a pro-US reactionary and nothing else of substance comes of this.
Maybe this is your first time, but there's a solid few decades of precedent. If I had a penny for every single time western anarchists thought a "leaderless" protest movement was revolutionary but turned out to be tied to the NED/EED, I'd be able to fund an actual revolutionary movement.