Bleach (No chapter, just talkin [a lot, jeeze])
So I've been thinking about Ichigo's zanpakuto. Once we found out about the asauchi, it started to become really weird that Ichigo had a zanpakuto at all. One was never made for him, or given to him. He's had three (and a half) swords, and I'm tryin to figure out what their deal is.
Sword 1 he manifested right after he took virtually all of Rukia's power. This isn't actually Zangetsu, it's just some weird stolen power, and after he got it Rukia was in white robes and had no sword. So I'm assuming that one way or another he actually stole her asauchi here, or its essence. (She probably got a new one forged after the SS arc.) I can deal with that, probably. The reason he was so strong is that her power being injected into him interacted and awakened his own shinigami blood to a tiny degree.
Sword 2 is Zangetsu proper, after Urahara awakens his "own" shinigami powers, but what he's actually doing there is awakening his hollow powers. Which is pretty obvious, Urahara's entire method here is to literally turn Ichigo into a hollow. But once he suppresses his hollow, all of a sudden he's a shinigami, and got a zanpakuto. Later on in his inner world we find out that his hollow and Zangetsu are actually the same power. So maybe Zangetsu was never actually a real zanpakuto. Ichigo's shinigami blood allowed him to contort and manifest his hollow power as a sword, and go through the traditional shinigami transformations. Which might be why his sword's name is so similar to his father's (Engetsu), why they can both do Getsuga Tenshou, and why they can both do Final Getsuga Tenshou. Cause Ichigo's "shinigami half" is literally just a hollowed-up version of his father's power, not actually born of his own zanpakuto. (Cause he never GOT his own zanpakuto.)
Sword 2.5 he has after the dangai training. It's fused with his hand, and doesn't seem to be a shikai or bankai or anything of the sort. It's just "his sword." Aizen's comments on how his sword is the same, also fused to his hand, and suggests this is the "true form" of their swords or something like that. Maybe since both of them had, to varying degrees, "transcended" beyond the shinigami or hollow roles, we were indeed seeing blades that weren't traditional zanpakuto. In Ichigo's case, quite explicitly a mixture between hollow and shinigami power. Tensa Zangetsu, after all, is literally half zangetsu and half hollow Ichigo.
Sword 3 he has after borrowing everyone else's power after most of his is stolen away by Ginjo. Tense Zangetsu made him lose his "shinigami" power, but some of his hollow power musta still been there, since hollow power is the foundation of Fullbringing. I'm not entirely sure what Ginjo actually stole from him in the end, there. His fullbring, sure, but what was that exactly? Was it literally his hollow power? Does he now actually LACK his hollow power? Either way, though, he got stabbed with that shinigami sword just like with Rukia in the beginning, and he's rocking stolen powers again. His current (broken) sword is just another imitation, sorta formed together as a conglomeration of a ton of disparate reiatsus. He was super strong, but I wonder why he was so strong. All his powering up throughout the manga, it wasn't still in him, was it? That was all either burnt out or stolen at that point. So is he that strong only because the sword he got stuck in him was full of so many captain-level shinigami? I'm thinking that's probably the case. Regardless, yes, that sword is a gibberish sword just like his very first one.
So now he's getting forged his fourth sword. If I'm right with any of this, it seems like Ichigo has just never had a proper zanpakuto throughout the entire history of the manga (and didn't even realize it, which was why all the asauchi were kicking his ass I guess), and he's only now finally going to get one. So will it even BE Zangetsu? Zangetsu was heavily based on his dad's sword, and half-based on his hollow. Will this sword be based solely on Ichigo, and end up completely different? Will it end up quincy-inspired in some capacity? I dunno man!!! But I think we might see something pretty radically different.