Bitcoin will hit 900 before the ends of the year, you will see.
I think 850 USD will be the max this year. There is always set-back whenever there is price increase. So as far as speculation is concern, after hitting 800 USD there will be set-back to 750 USD, before it go back to 800 and exceed it. There is always this scenario of you look back at bitcoin price history. So in my opinion it won't be a smooth sailing to 900 USD.