Bullrun will is coming now, look BTC grow again at keep growing until now.
But if you min a boom moment like 2017, i think the answer is in 2021.
2021 Bitcoin will hit at least 50.000 $, let's wait and see how it will happen next time.
The bull run of this market is hard to guess due to the fluctuation of cryptocurrency. At the moment, the price of BTC is down at $9400 and ETH still down below $200. So that the bull run in this year will happen at the end of this year when the demand of cryptocurrency is high.
It always been like that since form its existence..
Ain't no wonder why it goes like this, the bull run we aim this year is quite silence and we are still in doubts if this pumps we experience will have its path to the top or a sudden drop we might have. It actually weren't going so far at this time..though I'm not in thinking of negative but it is really hard for the price especially for altcoins to rise up just like it did last 2017 bull run.