Within a near future $40k may be achieved, but I think that $30k level is on the way and when btc touch $30k, then we may expect some price drop, following corrections before a bull run that may proceed to the $40k region starts.
I think btc is moving on gradual manner, on like in 2017, price pumped within a space of two weeks and drastically crashed within 5days. Btc has actually taken a new pattern and I hope it sustain this price movement in 2021.