With todays motherboards getting smaller, there is a lot of empty room left in the head.
Is it time for pinball manufacturers to adopt a new shape for each individual game that incorporates the logo and DMD? Even games like the Hobbit using an LCD monitor used a standard size head, when lets face, its mostly dead space in there.
Maybe a car shape for Mustang or like Gene Simmons head and tongue for Kiss? You could even come up a interactive head with something like a slot machine in it for a casino theme. Or carry that down to the playfield glass like casino machine incorporating special functions.
I'm not architect, but I am sure some different shapes could be dreamed up depending on the game.
I'm not saying lets get rid of the head, but a new design would be cool.