Bitcoin will definitely increase gradually, but it won't go to the moon like last year. Why? Because many whales/sharks are using other altcoins to absorb money from Bitcoin!
Market is not just something that would raise all of a sudden within a short period to start attaining different and new ATH. It is far more than that, and the earlier some people started realizing that there is process and a gradual movement for everything than calling the moon every time or expecting a bull run that is not reasonable, the better for them. 40000 is a lot and we would even be lucky if we manage to go retest the previous ATH by the end of the year, which to me is still a lot bleak from where we stand now.
I don't actually believe that Bitcoin will reach the price of 40000USD at this year. It doesn't seems like true thing. That's just hardy can be imagined. But in crypto industry wonders happens from time to time.
There is nothing to even start imagining in a prophecy that is not even realistic in the first place. Apparently, this is just someone's idea of telling the community that this is what I want at the end of the year, but does not mean it would happen anyway and it won't happen as far as I am concerned, unless there is just some serious news to instigate some big move in the market.