*SPOILERS*
Ichigo visits his inner world and meets Zangetsu
"Old man Zangetsu, teach me to be stronger!"
"Well now Ichigo, I have the ultimate technique to make you stronger."
"What is it? Tell me!"
"Hold your sword in two hands!"
"..."
/endmanga.
Seriously though, I think Kami is onto something with those predictions, Ichigo has grown at a crazy accelerated rate which is a likely cause for his inner world being as ****ed up as it is. There is one thing though, that Shirosaki said that one day the inner world would be his and Zangetsu agreed, meaning that they both knew that Ichigo's hollow would eventually take over, maybe this was a reference to the fact the way Ichigo was gaining power would lead to this situation. Either way, I'd love to see Zangetsu come back and allow Ichigo to evolve a bit as a Shinigami rather than as that twisted hollow form.
All in all, as disappointing as Bleach is right now, it's good to see that despite it all, the series can throw a curve ball and spark some interesting theories and speculation on where the series is going.