I think bitcoin will be just stable around 450 dollars at the end of the year.
If doesn;t go what I speculate this price is also oke.
I think it wont. My thoughts are it goes up untill christmas to around 500 dollars and then falls back to steady $400. So we actually see slow climbing (from stable 270 to 330 etc). So everytime it goes up it will fall down again, but higher then it was when the upwards trend started.
tl:dr
It will go higher than 450 but then fall to 400 by the end of the year.