The slideshows and official images are often computer renders, but the toys on display for SkyReign at BotCon and SDCC look to be hand-painted samples, which is expected of products that Hasbro reveals that are more than 6 months ahead of its release (that's wave 2 of 2016, so is likely to be an April release).
I was almost saying that in jest, but only yesterday I read on one of the American fansites, a person saying that they they cover the NY Toyfair each year and were happy about Hasbro not participating in the British Toyfair next year because he didn't like having other Toyfairs "leaking" images first... as if the American Toyfair is the real Toyfair, and all others would spoil his coverage of the American one.
He didn't seem to realise that America isn't the number one country in the world for everything, and despite the NY Toyfair getting a lot of fan coverage in recent years (because the main fandom is in America and Hasbro has started using it more), the German Toyfair is actually the big Global annual event for the Toy Industry... bigger and more important than the NY Toyfair, which is only for American Retailers.