[JackN]

Wow this is the most obvious teaser ever. Lets break it down, piece by piece.

Thunderchickens shirt=4 Bar/8 Bar Linkage
Karthik=Robot will be no taller than he is, so it will be like 5 feet roughly
Box Covering Karthik's head=The robot will be rectangular
Large black Spots concealing their Shop=Probably nothing important, just maybe their actual robot (Knowing them it is already done and they have already began practicing with their drivers)

I do think it is weird about the large black thing covering the top left of the picture.