I'm afraid I'll be officially calling this game dead. I made the mistake of trying to maintain something this creative while also working on a gaming project of my own, and I began to split the attention I felt this game deserves. I'm sorry we weren't able to explore the planes in full detail as I feel they haven't really been represented well in PbP, but I won't be the DM to delve there.
Many thanks for all your participation, aside from the guy who didn't survive past the first day, you've all been awesome in (and out of!) the game.