Having bingewatched season 2, obviously the first question on fans' minds is: when are we going to get another season?
Well, that's difficult to say right now. It's possible that the answer is never as Marvel and Netflix have yet to officially renew Luke Cage for a third run. However, seeing as even the failure of Iron Fist season 1 didn't put them off, there's surely only a very slim chance that the show will be cancelled. If you look at past cases, Netflix announced another season was on the way a month or so after the last season arrived. So watch out for any Luke Cage news over the summer.
Assuming that season 3 is given the greenlight, then, when could Luke Cage return to the streaming service? Typically, Marvel and Netflix have spaced out the seasons of the shows two years apart. This year, though, it's known that the studios will release an impressive three seasons. So it's possible that we could get season 3 as soon as 2019.