User blog comment:Theraven22/bankai's that should be revealed/@comment-1393830-20100330203808

I don't think Aizen's bankai would be trapping them in their own minds as this is semi similar to Tosens, Tosen takes away all of the persons senses and traps them in that bubble.

Salubri- I see what you mean about reality warping but it does not rule it out. Sensory warping and reality warping are close enough compared to some of the bankais out there. Soi Fon's zanpaktou is about death and it goes from posion with a small blade to a giant rocket. Those are a bit unrelated and thus I think reality warping could still be his Bankai.

And Gin, yes, the reason I think that Aizen may not have a bankai is because he could have used his shikai to create a bankai for his test.