Board Thread:Questions and Answers/@comment-28648393-20160616142328/@comment-28630611-20160626150240

We know one thing that could actually hurt Yhwach and it is hollow reiatsu.Maybe after Yhwach takes ichigo's quincy reiatsu,his hollow reiatsu will take over his body and ichigo may undergo a full hollow transformation and then Aizen and Urahara appear and transform ichigo into an powerful arrancar that can wipe the floor with Yhwach. Another method would be Quincy Zangetsu teaching Ichigo about the past of quincies and QZ's memories of the past battles and releasing the sleeping quincy reiatsu which means that ichigo would transcend into a new being half hollow half quincy who can see the future exactly like Yhwach(if we think about it,QZ is Yhwach but at the same time he isn't,maybe he has the Almighty too)and fight at equal.I have the feeling that Old Man quincy zangetsu is the key of this battle.