The changes is in the OP, but I will repost it:
Tier: At least
7-A, likely
higher
AP and Durability: At least
Mountain Class+, likely
higher with Shunko and Bankai (Able to defeat
Yoruichi Shihoiin base form, while she used Shunko, previously to that he is able to defeat Zaraki in base form before he took off his eyepatch),
higher with absorption (Able to get stronger by absorbing energy). (Not sure about the possibly
6-C rating).
Speed: At least
Massively Hypersonic+ (Able to defeat Yoruichi while she was using Shunko), likely
higher with Shunko, Bankai and Shunpo (His Bankai makes him far faster than he was previously).
With addition of:
Status Effect Inducement and
Power Nullification via Shocked (Able to passively leave his enemies shocked, thus making them unable to use skills on him) and Sai (He binds them, so they are unable to move, but they can still fight, due to game mechanics).
Probability Manipulation with Sure Evade (Is an ability that has a chance to dodge all the attacks) and Absolute Defense (Is an ability that has a chance to no sell all the attacks to minimal damage).
Chi Manipulation (Can use Reiryoku and exert it as Reiatsu
to increase his offensive power and defensive abilities).
Cloth Manipulation (His Bankai gives him clothes and a Tiger Head on his shoulder).
Energy Projection via Sokatsui and Soren Sokatsui.
Accelerated Development via training and fighting (Able to quickly learn Bankai, Shunko and was able to grow strong enough to defeat Arturo Prateado, who had stomped him in the previous fight between them)
Fire Manipulation (His Bankai is literally a flaming blade) also via
Electricity Manipulation
Afterimage Creation (His Bankai makes him so fast that he is able to make afterimages to characters like Yoruichi and others)
Extrasensory Perception (Capable of sensing Reiatsu, seen when he noticed the Arrancars appearing)
Speed Enhancement with Shunko and Bankai
Status Effect Inducement and
Energy Manipulation via Rasen (purple energy surrounds Fujimaru and engulfs anyone surrounding him, the energy itself can also randomly bur
, freeze, shock, or
Poison anyone caught within the vicinity.)
Absorption: Able to get the reiatsu out of his allies (He is apparently able to get the reiatsu from Quincies, Shinigamis and Vaizards, seeing that these are characters you can recruit on the game.)