Wait a second, everyone made such a big deal that certain elements had to be pulled from the toyfair exhibition, and all they pulled were the generic baddies and their dinky air-surfboards? Surely that doesn't reveal anything about the upcoming Avengers movie.
Still think he looks like a bobble-head, though I do think he looks a BIT better when there isn't a normal minifig next to him for comparison. The problem, for me, is that while there are plenty of very large helmets for minifigs, this one actually has a FACE on it that is scaled up to the helmet's size. That's what makes it look, again to ME, like a freakishly giant head.