No. Don't know about a comet or whatever coming in September.. A comet struck millions of years ago in Wolfe Creek, in the North of Australia. We walked around the diameter, it's fairly shallow but really wide and very eerie.
If the comet or whatever pops up in the news, I might just sit up and write a "quick prophecy" and post it on the net. (as soon as it's detected and assuming it hits anywhere else, but here)
I might give it a try and "force" Revelations to fit in with my interpretation and then if something does happen...
I'll start my own religion and rake in the dough.