User blog comment:Xilinoc/Everything but the Rain op. 10 - "Prinz von Licht"/@comment-5551986-20130516143856

I think Uryu has been a Quincy agent the entire time. He has probably told the Vandenreich everything. Unless they have eyes and ears everywhere. BUT. It said 999 years it took to make Yhwach, himself. But nearly 2 years ago Ichigo fought Aizen, Yhwach wasn't around then (in some sense) so maybe Uryu has been leaking information this entire time and suppressing his power. In all fairness, he may even be a special war potential. But i doubt it.