I'd be pissed if it wound up being Renji or Rukia somehow. I was thinking that if they said Ichigo's a special potential because he's young and his bankai can grow maybe it'd be one of the younger shinigami...I'd hate for it to be Histugaya but he's the exact opposite of Yamamoto and he's a young prodigy cat. We were talking about Kenpachi's little girl too, she's a beast despite being madd young. I hope it isn't Zero Squad, those cats should all be beasts anyway.
Also wondering if these cats know about the guys who've hidden their bankai...like Ikkaku.
I thought about this after I wrote that and thought about why Aizen and Ichigo WOULD be war potentials, and why Yamamoto WASN'T one. I came to this conclusion:
A war potential is someone who has the ability to defeat the Vandenreich straight up, without having to restrain themselves for fear of having their powers stolen. Now, if that were the case, then we're limiting ourselves to 2, maybe 3 shinigami that we know of total:
-Ichigo (They can't steal his Bankai; his power isn't even close to its ceiling)
-Aizen (Functionally immortal, extremely intelligent, has a Shikai that only, like, .1% of fighters can fight against. E.g., he doesn't need to use his Bankai)
-Possibly Urahara (Intelligence, analytical skills and tactical ability)
Other than that, no shinigami fits the bill. Orihime does from a power standpoint (she could end pretty much any conflict with a single thought, realistically) but not from a WILLPOWER standpoint. If this were 200-250 chapters ago, I wouldn't hesitate to include her, but now, she seems to not have a whole lot of importance anymore, so I have to hesitate. Including Uryuu has already been explained. Other than that, who else?
Note: This is ALL speculative, naturally.