He was giving pieces of art out as teasers and when you put the pieces together you would get the final spoiler-ific concept art in total.
Here is what the final completed piece looks like! Behold, the possible TFA version of Beachcomber, which if you remember was also listed on the Season 3 spoiler character list.
Behold...Beachcomber?
![Image](http://seibertron.com/images/news/gfx/1221962065_cartoon_animated_beachcomber.jpg)