I disagree with a lot of the choices, mainly because they are mature or r-rated things; while it would make for some funny stuff I don't think it would make for a good lego game. Also, game of thrones is basically a soap opera, so it would get kind of boring (especially if it was done without voices or just with audio from the show).
I am totally behind lego ghostbusters, though. And the idea of having a little lego dalek army of my own makes me happy in ways words cannot express.