No..........not really.............
Then how do we expect Naruto to become Hokage beforehand then, if we didn't take in the consideration of Tsunade dying?
Did we all have to assume that Tsunade just had to die for Naruto to become Hokage, not retire?
Of course you can argue that Tsunade is older than Kakashi, and that she'll probably retire sooner. But according to you, the previous Hokage retiring and giving the title to Naruto would suck out all the emotion and power of the events of Naruto becoming Hokage. So, no matter what, someone needed to die for Naruto to become Hokage, or the events that lead up to him becoming Hokage should be important. BUT, I'll argue with that by saying that the whole series has been leading up to Naruto becoming Hokage. It doesn't matter the specific circumstances that lead up to him gaining that title, as long as readers feel like he's ready or has matured. Usually a main character's growth doesn't 100% end until very end of the series, and the fact that we are arguing that Naruto doesn't seem ready enough to become Hokage, thus he needs to grow up fast, means he's not ready.
I'm not trying to disprove your theory, I'm just pointing out an other possibility besides having more characters dying or for Naruto to gain the title of Hokage already. Those may still happen, but like I said, it's just an other possibility............
I already feel like you're going to post something else to counter this (unless I won you over with this (doubtful)), so to prevent a possible argument from coming out of this let just agree to disagree.