User blog comment:Warya123456/Is Aizen really dead?/@comment-117598-20100802144355

Aizen probably activated Kyoka Suigetsu way in advance and Gin just speared an illusion. Gin touching the blade was probably an illusion all along so he never touched the real Kyoka Suigetsu.

I think 2 things will happen to reveal Aizen still alive: 1) The hogyoku will heal him and purge the poison from his body, making Gin see the near limitless power that it possesses, or 2) As "Aizen" body disintegrates, Gin's eyes open wide as the real Aizen is standing off the distance with a smile on his face. Similar to the fight between Koga and Byakuya.

As much as Gin is crafty and cunning, I can't picture Aizen beaten after the G13 and Vizards and exiled fighters couldn't do much to him. I CAN picture Aizen letting Gin think that he had bested him to draw him out. I can also picture Aizen saying things like "I knew you would do something like that. You know my sword's weakness, but that's because I let you know it. Do you think I wouldn't be prepared? Blah blah blah.... Oh, and I've always known what your Bankai could do. But I wanted to see what you would finally do in the end. So I just waited.... because I have all the time in the world."

Of course, I could be entirely wrong and Gin just killed Aizen, simple as that.