The $70k level as a target does not seem impossible to me. I'm saying this as I rely on the current great run we witness in the market. Bitcoin price reached even $55k and gave a big hope to us. Because the last time, it wasn't able to go above $52k. This time, we might see a level over $60k in a short time or at the end of this month in the worst case.
Still we are in testing zone of 50k because quite a few hurdles while crossing it. So if can see it above more for a week and crosses 60k then yes we might be in for 70k by Christmas. But still I believe will not be easy unless some major booster comes in from some country for bitcoin which can just add the fuel to the price.