Board Thread:Improvements and Issues/@comment-5355747-20130313062554/@comment-11051098-20130721041200

That's a good idea. He could certainly have done such a thing.

Or, while he was in the human world watching Isshin's fight with White, he could have used Kyôka Suigetsu's power to make Isshin's appearance change for everyone from the Gotei 13 who had seen him before. So that if anyone should see him, they would see another face and feel another reiatsu from him.