iPhone 5s phase out

Hi guys,

I heard that the iPhone 5s will be phasing out soon (If you don't know what it is, go find the definition). When the new iPhone models (Most likely the 6c and maybe others) have come out, the iPhone 5s will now be at a significantly reduced price. Does anyone have a good estimate of how much it cost (AUD) after the phase?

I reckon it will cost round about 500$-600$. What is yours?

If you are wondering why I am asking this, is because I have a limited budget. Thanks!