I do not think that Bitcoin will even grow beyond 10,000 $ by the end of 2018 and that would be good.
To much short-term hype will endanger the long-term development. 2018 should be a year of consolidation where bitcoin and other altoins can prove that they are stable enough to maneuver through. This will create more trust and leads to wider adoption.
I believe only in 2019 / 2020 bitcoin will continue to grow significantly.
However, this is just my opinion and it is speculating on something which is nearly impossible to predict.