Bitcoin bullrun is at the moment, we will see the alts follow the same pattern when Bitcoin starts to cool off slightly. You will see the easily pumped coins go first then the more stable ones after.
The bull run has not stopped yet, just like the last one, it started in December, it ends in January next year, so I think we will see the same scenario. The thread title says the long awaited bull run, yes it is, and maybe we can also say that it's a long bull run. 
Much awaited for a bull run for the people who are in from 2017, still, there are many people like me holding some active since 2017. Maybe this bull run will continue throughout the year and once the price of Bitcoin stable, we might see altcoin will start their engine and everything, we have to wait and see.
To continue through the year, I think its unlikely to happen, that would bring bitcoin to $100k or even more if that will happen, I see some correction then probably we will start again. Altcoins season were lead by major coins in the past, now, ETH reached $1000, it's a good news and it could be a start, but I'm still not certain though as majority of the altcoins are still sleeping.