Minato and Kushina would be alive so Naruto would have a fun and happy backstory.

Itachi wouldn't have to slaughter his clan and Sasuke would have a happy backstory.

Then finally Obito becomes the hokage.

The Uchiha massacre its still can be real because the kurama atack its just thing to faster home war so i think sasuke lost his family 2 years before 1 Series