$40,000 seems like a safe bet,
It's like a safe haven in my opinion too. If bitcoin will be on this type of movement all year round then we might see $40,000 as the most possible and ending up price of bitcoin. But just like year 2017 we have seen a very bullish market that happened in the mid-run of that year and if this will be the same during this mid-year then we might even see it higher or if not it can go faster than we are expecting or Novogratz predicted.
Like 20k, 40k is just one more step for bitcoins. I believe bitcoin price can go higher, my expectations are high. Its not without a reason, I'm here for two years and until now many times price raised more then I expected in short period of time, much more then I expected.
Bulish market isn't over, I think bitcoin will continue to increase in value and one of the next stops will he 40k. Let's not forget that we are on the half way to another fork for two years and many things can happen until then, but after fork we fan expect triple price from now.
More and more step, we are still at $15,000 and we have to wait for that day. Bullish market might come and what I've experienced in bitcoin for the past years, last year it started out at $1,000 and it became bullish during the end of first quarter up to the end of the year. And if this movement will be stable then that's going to make it's price move quickly from $15,000 -> $20,000 -> $25,000 -> $40,000.