On its current trajectory BTC is set to break 50K by the Feb 15th or 16th, with the latest being the 23rd.
The middle line of the blue parallel channel is currently acting as support (marked yellow arrows on the chart). If that line holds as support, BTC will break 50k any where between Feb 13th - 16th.
If BTC makes a move down but holds it's current trading channel, it will break 50K at the latest Feb 23rd (marked yellow circle on the chart).