It's possible to happen in my opinion. Bitcoin may reach $70K at end 2018. Only patience will pin it. Because, I don't want to lose the moment as it has happened before.
I think that speculation are full of greediness, exaggeration, you know why? We are in crypto currency crisis. How could you think now that bitcoin value reach $70,000? If their value are playing around $10,000 to $13,000.
It is hard to believe for now on that amount but yes there's a possibility but I think it takes a lot of days and months before it happen into crypto currency world.