we all know aizen was strong before even leaving soul society, he was as strong as yamamot, but now he had the hogyouku fused with him how much stronger has he become,i think everyone should have gone full out for captains bankai vizards mask and what ever else. remeber he could stop ichigo in bankai with a finger, defeated sajin with a 90s kido with skipped incatation. The ? is now is has he trained, how much stronger did the fusion make him and how will ichigo beat him? Honestly I dont see how ichigo can win unless he becomes some god/human/vizard crossed over.