Price will be 70 k end of 2018.
It is easy to say, but looking at a lot of things that would need to be fixed, we should not expect even the $50k. I expect that a lot will change anyway, LN will be deployed and a lot of merchants integrating it, transfers between peers getting faster, low fees and all would make bitcoin to experience the greatest year of all as we would get to see people buying into bitcoin for its value and not just as a speculative asset that ends up creating a bubble.