What would you like to see from Frictional next?

[superluser]

I don't think Frictional needs to change that much, but you can't keep doing dark, claustrophobic horror forever.

Well, fair enough. Other types of horror might be a natural progression. What about the fear of never having children, or the fear of dying the same way your mother did?

I don't know if those would make good games, but other, similar fears could probably be good fodder for games.