1k mid 2017 is very possible. In fact, I think we might hit 1.5k by the next halving.
Honestly we would be in the 1k+ area by now or by November if the Bitfinex hack didn't happen.
Next halving will be after almost 4 years from now, so price may even hit $2k by that time or even higher. Yes it is quite sure that if bitfinex didn't have got hacked recently we may have already crossed $1k by now.