Interesting thing about non official major update announcements, they never state what they will be and they don’t provide a name of a person in the affected company. Since Yuneec does not actively participate in any forum but the one they sponsor at Facebook there’s very little to learn where product announcements are concerned. Shoot, they don’t even participate heavily in promoting their products, using demo pilots to do that for them. The 520 is a great example of this.
Anyone with a significant amount of history with Yuneec products knows they make few announcements; most of them lack any detail, and promised dates are never met.