Hmmm...
Looking at the ruins of the modern world, and mixing that with the fact that it is apparently d20 Fantasy and not modern, and adding in the whole Time of Judgment/Gehenna/Apocalypse/Ascension concept, I'm going out on a limb to say that the setting will probably be a post-Magical Apocalypse setting, World of Darkness style. Technology fails during the magical apocalypse, and vampires, werewolves, mages, changelings, etc. rule a magically ravaged Earth. Perhaps even more traditional "high fantasy" elements invade Earth... that looks like a planar gate to me.
Characters can either be standard d20 Fantasy mortal humans or the more powerful vampires, werewolves, "true magi," Changeling-style demihumans and humanoids, and so forth. Vampires would rule the ruined cities trying to rebuild a sort of civilization (they need lots of people to comfortably subsist), and werewolves and changelings rule the wilds, with the rural/suburban area now true battlegrounds. The Antediluvian vampires have ascended to godhood, the old gods return, and so on.
Read S.M. Stirling's "Dies the Fire" and Steven Boyett's "Ariel" to get the basic idea, then add in the World of Darkness elements, and teh core fantasy elements from D&D... and that's probably Monte's WoD...
