I had a funny feeling this was about to happen... very funny feeling, actually.
Thankfully, there are people here right now that could probably take your place. Not me, though. Heck no. Engineering classes and the fact that I may be totally horrid at GMing this (Not afraid to admit it) anyway means that I shouldn't even be considered. So no. Not me.
I pray that this doesn't end up fading into oblivion like that server I mentioned/referenced a few times over.
There are certainly some capable people here, but I'm not sure how capable they would be. I just pray that it's good.
That being said, you've gotten halfway through a game as large as DtG without buckling under immense pressure. I'm legitimately impressed. And you've done a pretty good job at it too, save for the very end with everything fireballing you from twelve different angles. Don't feel bad about "doing it wrong". In my eyes, you were doing something different. Boundless charges, the highly increased altimeter level, heck, even some of the entities that appeared are different in style (City of Aetheria, for example). Be pleased with progress, not completion.
May I make a suggestion, though (if it hasn't been tried and failed in previous DtG games already)? Perhaps make GMing this game a joint effort between 2-3 people, to split up the work so that one person doesn't have to do everything? It sounds good on paper, but I'm not sure if it would work well in practice... timezones and all that... yeah. Anyway, just my 2 cents.