I think it would reach 10000$ mark in the early months of 2018. Im sure that it will show sudden increase in few months. It might be unpredictable but we can assure it will continue to rise because it continously gaining large demand. But the value would still depend on the support of people. There will be attempt to make people transfer with other coin which definitely affect its value. One thing is for sure, bitcoin value may drop but it will eventually regain its value and go over its highest peak.