i gotta say that Ichigos "Final Getsuga" is pretty bad ass.
Ichigo said that afterward he will loose all his shinigami, so is this the end of Bleach?
Or will something "magical" happen and he learns a way to regain them?
And did his father do the exact same thing, so that's why he knew about it?
hmmm so many questions...

Ichigo will lose his powers, there will be filler downtime, a new threat will arise, Ichigo's dad teaches him the way he relearned his powers.

[AS IT IS WRITTEN]

He is trying to do a joke. Like "So it is written and so it shall be!!!!", at least that is what I think.

But seriously......... crazy crazy crazy sh*$ that is going down. But I see this going one of two ways now.

1) The series ends because Ichigo be a gooooooooooooood~~~~~~~~~ but.................. I don't see that happening since there is so much left to do and explain.

2) The explain how "Squad Zero" or some other form of entities connected with the royals are at Ichigo's level and thus are kept separate due to their "greatness".

But I don't think that he can't become a "shinigami" means what we are taking it to me. I still think he is going to fight with Soul Society he just probably won't be able to "free" souls or something.... Anyhow my two cents.

He is trying to do a joke. Like "So it is written and so it shall be!!!!", at least that is what I think.

sarcasm... just doesn't work over the internet :/

anyway... i really don't think that the series is gonna end, like ya said, way too many questions still unanswered.

I think B00n is right. That might be how Ichigo's dad lost his powers, but he regained them after awhile so Ichigo may regain his too. Or! The do a cheat and have Orihime "reverse" Ichigo to before he used the final Gestuga Tenshou

ahh! i totally forgot about Orihime XD haha yea i suppose she could "reject" that Ichigo lost his shinigami powers. hmm we'll just have to see though

So, basically Bleach won't end by defeating Aizen. And then they'll reveal the secrets of soul society? Well, I hope that they won't put some Filler Arcs. It makes the story... some kind of boring. No offense to the Bleach fanatics. I'm a fan too. 

If the manga will continue, sure there will be another antagonist. And consider this, is "Mugetsu" not a threat to Soul Society?

And also, losing the shinigami powers means losing the bond between the shinigami and the zanpaktou...

Has it really been nine years? Either way, as it stands there are too many questions, but he's already dragged the story out to the point that a single chapter covers barely anything of the plot. It has started to fix it, but I'm not sure if he should risk it by continuing it.