Decoding Brightest Day

DC just released this Brightest Day poster, which appears to be along the same lines as the Final Crisis  posters that were in the comics a few years back (wow, do you realize its been two years since Batman RIP?). I'm really crappy at the whole decoding symbolism thing, and quite frankly I was still scratch my head when the Final Crisis pages were explained. Still, if anyone wants to take a crack at it...