I went and outlined what I think are two possible Elliot wave counts for BTC.
Both counts do have similar price targets, but I think thats more a result of having the same preceding count. So my thinking throughout analysis is that bull market was from April-December 2017, and we've been experiencing correction from January-February 2018.
The sake of acknowledging the possible two counts are related more so to 4, 2 and 1 hour charts, as you can use the information to play shorts. For long however, I believe mid March is when we begin to hit our second wave in our primary impulse.