DC and HBO has announced that a new Green Lantern series is on the horizon.
There are currently no details about the show (not even a name), other than it's "a Green Lantern inspired series." This could mean that our usual heroes like Hal Jordan and John Stewart will be absent, or a character could be re-interpreted.
Executive producer Greg Berlanti's Berlanti Productions will be making the show, so Green Lantern could be connected to the Arrowverse or DC Universe shows.
For more info, read IGN's article.