Marvel's Luke Cage Season 2 is happening on Netflix, but probably not until 2018. We can wait if we have to.

"Always forward."
Marvel's Luke CageSeason 2 is officially going ahead at Netflix. This shouldn't surprise anybody, considering the strong viewership and positive critical reaction the show received. In fact, the show about the man with unbreakable skin managed to "break" Netflix during its opening weekend.
The Luke CageSeason 2 renewal was confirmed in typically stylish fashion with a brief video...
Unfortunately, that's all the hard info we have on this one right now. We'll next see Mike Colter's Luke Cage in The Defenders this August, alongside other Marvel Netflix superheroes like Daredevil, Jessica Jones, and Iron Fist. The Defenders is currently in production, which means that the "coming soon" we see in the Pops' Barber Shop window is kind of a relative thing.
But there are indications that this is about to go into production, or at least pre-production:
"Tiara" was the production code title for Luke Cage during season 1. And then there's this...
...which is a little more promising.
Luke Cage Season 2 Release Date
There's no release date info at the moment, other than the "coming soon" promised in the video. However, don't expect to see Luke Cage Season 2 before 2018. The Punisherand The Defenderswill arrive later this year. Expect Luke Cage Season 2 to be part of the "phase two" of the Marvel Netflix project alongside DaredevilSeason 3 and Jessica Jones Season 2.
Of course, if it turns out we're wrong about that, we'll update this with more details as they become available.