I think we can see a good shot at reaching $600 yet this year. There will be a lot of wild price fluctuations around the block halving, up and down, but I think once the dust settles we could be going into 2017 looking at a comfortable $2000+ range.
Once the halving process is done, you will see a difference in price, maybe that's after a month but we don't know because halving result will not quickly kick in for a week it will be feel month after the event.