What's the price of the iPhone 4s price after?

What's the iPhone 4s price going to be after the release of the new iPhone 5?

No one knows yet since Apple does not preannounce pricing.

However, based on their history, it is likely that Apple would price the new handsets at the same pricing as the current lineup, and the previous generation (hence the iPhone 4S when the sixth-generation model comes out) at $100 less, if you are looking at subsidized handsets.

We'll know for certain once Apple releases the sixth-generation iPhone (which will not likely be called the iPhone 5) which they will probably do in September or October of this year.