How many episodes will there be?
Like Seasons 1 and 2, 13 episodes (appropriately) are set for the upcoming installment.
What's going to happen in Season 3?
According to THR, Netflix's official longline for the season is as follows: "Eight months after preventing Tyler (Devin Druid) from committing an unthinkable act at Spring Fling, Clay (Minnette), Tony (Christian Navarro), Jessica (Alisha Boe), Alex (Miles Heizer), Justin (Brandon Flynn) and Zach (Ross Butler) find ways to shoulder the burden of the cover-up together while helping Tyler move toward recovery. But when the aftermath of a tumultuous Homecoming game culminates in the disappearance of a football player, and Clay finds himself under police scrutiny, it’s up to a shrewd outsider to steer the group through an investigation that threatens to lay bare everyone’s deepest secrets. The stakes are raised as the consequences of even the most well-intended actions can alter a life forever."
Based on the trailer above, it sounds like that missing football player is Bryce. As much as Clay and company would probably like him and his antagonistic antics out of their hair, it seems like his disappearance is bound to cause them even more trouble.
Beyond that description, in a general sense, Season 3 sounds like it'll also piggyback off Season 2 in a fairly logical, straightforward manner -- the same way Season 2 did after Season 1. "The themes [of Season 3] are sort of inherent in the action of Season 2," Yorkey explained at a Netflix FYC panel. In particular, the showrunner's comments call to mind sexual assault, teen pregnancy, school shootings, and broken homes, all topics that loomed in the backdrop of the Bakers' court case. "What happened to Hannah will always be the first clause of the story," Yorkey added. "The rest of the story is about young people, as so many young people, maybe all young people today [learn] how to heal from the things that have hurt them."
Based on last season's finale and Yorkey’s comments, it's likely that the reveal of Chloe’s pregnancy (presumably with Bryce as the father) will be one of the many dramatic focuses of Season 3. In speaking to Entertainment Tonight, Justin Prentice, who plays Bryce, emphasized this angle being part of next season, specifying abortion as a potential topic to delve into. He said, "I think [abortion very much could be touched on] and it would be interesting to see how they handle it because from my point of view, Bryce comes from a powerful family and they have a way of making things disappear, so I don't know. It'd be very interesting to see."
As for other loose ends, the previous season may have shown Clay’s family accepting Justin as one of their own, but it also suggested that he is relapsing -- meaning addiction may be another topic the issue-focused series explores. And, of course, the ramifications of sexual assault and gun violence are expected to carry over into Season 3. (More on Tyler later.)
Expect an even greater sense of community
As Clay and his peers tried their best to recover from the trauma of Season 1, near the end, they seemed to find strength in togetherness -- a theme Yorkey has hinted will crescendo going forward. "One of our big themes for the season was the progression from isolation to community," he told Entertainment Weekly. "We respond to people being there for each other, so I do hope that if the story does continue, we will continue to see that. I’m sure there will be new adversity, but I’m sure we also will see that there are bonds here that these characters didn’t have before."