Yeah, I've been debating that as well.
It's fixin' to be another IP dominated year, so theme-wise, will it be like last year? Will an IP be the theme, like how The Walking Dead was? Theme? *scoffs* theme, my ass.
Or maybe we will get something coherent and not just a bunch of random houses like last year. Though with so many possibilities for IPs, and so many varying worlds and ideas, I feel that would be pretty hard. It wouldn't be impossible, but is it likely? I am unsure. A coherent theme would show a lot of effort and maybe more originality, depending on what they do, could do, or are alloud to do with it.
Though, if they're going to "follow the money," as Penn would say, a popular IP as a theme would bring in the bucks.