Board Thread:General Discussion/@comment-24769684-20150804233429/@comment-26091912-20150805124904

If he's been training covertly to attain it prior to joining the Wandenreich, it's possible.

Uryu has always been prodigious when it comes to Quincy combat, techniques, and knowledge, so he could also possibly achieve Vollständig even without having to train for it. In terms of power, I would say it'll be weaker than Letzt Stil. As for what it would look like, I can't really say for sure.

Perhaps it will look similar with the single wing, or maybe it will look similar to Quilge's; Ichigo said if Uryu ever transformed into something like that he would have to "cut him down out of principle". (Although that was probably a figure of speech.)