His rate of improvement from being a normal human to a fullbring is quite fast, even to his other learning feats, but I don't think he will be as strong as he was before, the plot will probably make him stronger anyway.

no way. mugetsu (final getsuga) was too strong if he can be stronger than that then the whole bleach manga will fall apart. kubo will have to think of plots and antagonists that are waaaaaaay more powerful than aizen. plus all the supporting characters will fall behind because they cant battle with such massive power.

Good point but thats a last resort move- its meant to be overwhelming, it would be useless otherwise.

Still he does train be even stronger that way he can use the Mugetu

Doesn't matter, using the Mugestu drains away all the power he gains, no point using it in a normal fight.

nope

Absolutely!

but he does find a way to get stronger.

Fullbring so far doesn't compare to high-tier bankai so far so unless he gets his full powers back or a technique of similar strength, he won't surpass the final getsuga tensho.

Thats what i find that he does get a new form and power and i think he is a lot powerful than he was before

his new form doesn't even compare to his time when he fought Byakuya, he maybe be growing in an alarming rate but if we compare to him to the other fullbringers he won't get near his original strength.

Ahh good

At the moment I don't even think he could beat Grand Fisher

Of course..what he does comes from a learning experience and as he goes on in it he'd most likely become a little more stronger each time..(hopefully that made sense..)

Indeed he did

there's always a way to get stronger

there's always a way to get stronger