Naruto would never have made it to the war.
In fact, he might just kill Naruto. Why? It takes a while for the nine tails to respawn, so IT is delayed.
The war would become a civil war between the five villages, since Danzo lacks the ability to bring people together.
There would be even worse causalities, since Danzo doesn't care about lives, as seen when he didn't help the Leaf in Pain's invasion
In the end, the Alliance loses. Danzo thinks about how he never surpassed the Third and gets killed eleven times.