Rather than being plot no jutsu'd away from the village conveniently. Could they have made a difference and made Minato/Kushina not die? They would have had some awesome ninjas. The Legendary Sannin, the Uchihas, Ino-Shika-Cho dads, both Hinata and Neji's dad, the Aburames, Inozukas, etc all led by Minato and Hiruzen(prime). Obito would have probably been fodderized to shit.