My guess (without any hard facts backing) is the peak will be somewhere around 3000-5000 usd but the peak of 2000 usd is unlikely as well as above 5000 usd. On the other hand, 2017 could be a repitition of 2013 and the price rises to 5000 usd in the spring season and towards December 2017 it can rise towards 10 000 usd.
Given how gradual the rise is currently it will take a few months before it breaks ATH and once that has happened there the gamblers screaming about 1000 000 usd/btc. When that is the case it is a good time to sell some coins to them.
Great advice. I keep banging on about the fact that Bitcoin should already be at $2000. The eco systems are all good enough to support that price now or even a month or 2 ago. The investors have been there for a while and the price is still nowhere near there. I think it will take another 17 months but... it shouldn't and there is no reason why $3000-$5000 cant happen... nor $10,000 but I doubt either will happen.
Wake me up in 5 years time when we are in a dip and we have reached a low of $5000.