User blog comment:CNBA3/Chapter 474 Review/@comment-7418318-20160222132153/@comment-7418318-20160222150610

Wendy already had her second origin unlocked. If there's any unlocking going on, it'd be Chelia, but then this kind of unlocking would take her out of the fight for a day or two so not likely.

Funny thing is, after reading MS's translation I too had thoughts of Ultear having become a "guardian of time" for a moment, but I quickly disregarded it again, since she wouldn't have waited for this moment if she really was a guardian spirit or something similar, instead of intervening the first time Dimaria used her power against Kagura.