until further development all we can say is naruto is similar to the 4th, to say naruto is the 4th would take away from the character naruto. 300+ chapters of naruto only to be told naruto doesnt exist its actually the 4th will truely mess up the manga. the 4th is the ruler to measure naruto much like how itachi is the ruler to measure sasuke.
- we dont know if the soul can be summoned from the stomach of the shinigami
- we dont know if the 3rd coffin stopped by sandime contained the 4th, it could have contained kakashi farther; the contents are speculation.
- maybe beasts like the bijuu cant be sealed so maybe the 4th modified the jutsu to compensate, who knows the time line is riddled with holes.
- assuming the jutsu that the 3rd did against oro was the same as the one the 4th did against kyuubi; then the 4th should have been killed instantly where does he even get the time to seal kyuubi inside naruto?
tbh none of it makes sense, hence kishimoto's reluctance of actually discuss in detail exactly what happened.
telling tales of contorted confusion
claiming that it is the sound of reason
as they make prisioners; a whole nation