I think next big peak to reach is for sure $2000.
I don't think it will be very soon, more like 2018 or 2019.
As quoted the next peak increase will be towards $1500. Based on the time required to cross the price barrier we can predict the time it takes to reach $2000. It's simply big to reach if we doesn't have a conclusion on the technology update which has been going on for a long.
i think bitcoin price will be sooner rise to 1500$ because bitcoin price going to more higher day by day a lot of people adopting bitcoin for their future.