Naruto dies. Melcheese door consumes everything it touches including a bijuu dama and naruto himself.
@othus12: You wouldnt happen to be talking about the 10k lightyear long robot would you? Because It would take quite a bit of time for melcheese door to devour all that. When it touches something it eradicates where it has touched and in most cases proceeds to take up everything in teh area and by the end of the manga yoshina can control it. That would leave a tailed beast bomb quite useless not to mention yoshina is probably physically stronger in terms of h2h and would be able to keep up fairly well in terms of speed.
Nova mode unlocked melcheese's door hidden capability and completely engulfed yoshina with the power. With it also being in psyren it makes it worse because the strain on yoshina is like nothing at all. Without the tailed beast bomb naruto is pretty much defenseless.
Also if Nova mode gives him the same powers it gave his dad this would be a mismatch, but that was never shown so there is no reason to go into detail about it.