User blog comment:SilverRain/Ichigo's True Strength/@comment-1706259-20130630131928

Aizen was not deafeated by Ichigo; after Final Getsuga Tensho Sosuke was healed by the Hogyoku and Ichigo lost his powers. Kisuke's Kido sealed Aizen before Aizen could attack. Also Aizen´s Bankai has yet to be revealed and it is likely he will be freed according to his plans since he refused Juha Bach´s help, and also regain Kyoka Suigetsu.