1. Kido- There are so many magic spells in this show that look cool but we are never given proper explanations regarding them. Characters just seem to do kido at random with random numbers.
There even was a kido corps but none of it was expanded on including who replaced Tessai and Hachi as the top 2 officers after the Turn back the pendelum arc.
2. Vizards/Gotei 13 in the past- I loved the turn back the pendelum arc. I liked the whole origin of how the vizards came to be. I would have loved to see more of Turn back the pendelum. There was a bleach character book (I think it was masked) that expanded on it but I never read it. It showed a bunch of captains and vice captains. Byakuaya and Omaedas parents. Ginrei as captain of squad 6 and the Kenpachi that was before kenpachi zaraki.
I would also have liked to see the 10th squad captain before Isshin. Unless Ishin was captain at the time and just not shown. But he should have been shown as there was an emergency captains meeting. Same thing with the previous kenpachi. It wouldve been cool to see zaraki beat the previous kenpachi in a full battle that would last an episode.
Also the Vizards never got expanded on at all. Aizan just kicked their asses. I would have like to see all their Bankais. I know Lisa had bankai cuz she became squad 8 captain at the end.
4. Hisagi- Man I just watched his fight during fake karakura town arc. Hes a gangster. I feel he should have gotten as much or more exposure than hitsugaya.
5. Neliel Tu Oderschwank- She should have had more of her espada past shown. How come only Nnoitara remembered her? She encountered all the fall espada and none of them batted an eye at her.
6. Shikais/Bankai- A lot of the sword releases go unrevealed at the end. What was Aizan's bankai?
I feel like FKT arc should have had Aizan pushed against the ropes then use Bankai then the Hogyoku. Instead he skips to the Hogyoku and turns into a weird pointy ear guy.
