Nubia event set for April 19, possibly a Z11 announcement?

ZTE's sub-brand Nubia has announced a press event for April 19, to be held in Beijing. The tagline reads something along the lines of "Small world - big wonders", Google Translate tells us, but that's all the poster reveals.Nubia April 19 event poster (click for full size)Logic would dictate, however, that a new flagship is to be unveiled, the Nubia Z11, and a Z11 mini alongside it. The Nubia Z9