I found Four Lions pretty disappointing, so I'm not sure what to make of this. I'll try to not get myself too excited, as it might be months before I get to see it anyway, but it's certainly great to have something new from him!
Also, the idea of it being based on 100 true stories appeals to me: I like the idea that there might be a lot of highlights from stories squashed down into a film, maybe working them into 4 or 5 plots / characters etc. That could be fun!