The news is out and you'll still pay a premium for the iPhone. So keeping up with the Joneses will cost you and the difference may not how in features or performance.
I would hold on to my 4s and do the IOS6 upgrade when it is ready.
But you all about that itch, don't you?
Thanks to Kelli B. Grant and Smart Money
iPhone 5 vs 4s: Which Is the Better Buy? - Yahoo! Finance