NBC is going all-in on its breakout hit This Is Us for the family drama's second season.

This Is Us has landed the coveted post-Super Bowl slot for 2018, and NBC weighed moving the drama to Thursday nights, opposite ABC's Scandal, in an attempt to resurrect "Must-See TV." The network eventually reversed course and decided to keep This Is Us in its Tuesday night time slot, but it's very likely that the show is just at the start of what could be a very successful, and lengthy, series run.

Fall TV Preview: Find Out When All Your Favorite Shows Are Returning!

So now the biggest question is, will This Is Us be able to avoid a sophomore slump? Here's everything we know so far about Season 2, which premieres Tuesday.

Jack and Rebecca aren't making up any time soon. The season picks up the morning after Jack (Milo Ventimiglia) and Rebecca's (Mandy Moore) big fight in the Season 1 finale. And based on some early footage of Season 2, Jack's not just crashing at Miguel's (Jon Huertas) for a couple of nights. He and Rebecca decide to formally separate, and have to explain the split to their children. So basically, This Is Us is going to continue to be its cheery self this season.

We're heading to the future. At the Emmy Awards, where This Is Us star Sterling K. Brown won Best Lead Actor in a Drama Series, Regina King (who's directing an episode this season) revealed that we'll see the Big Three in a decade we've never seen them before. Given what we've already seen (i.e. every other decade), it sounds like This Is Us is prepping a flash-forward!

Kate is going to explore a music career. The Season 1 finale ended with Kate (Chrissy Metz) deciding to pursue her dream of becoming a professional musician. How will that work out for her? We anticipate that, as with everything else in Kate's life, it won't go smoothly.

We'll see more of Kevin and Sophie. It looks like Kevin (Justin Hartley) and his ex-wife Sophie (Alexandra Breckenridge) are back on, but we want to find out how they got together in the first place - and more importantly, why and how their relationship ended. Hopefully Season 2 will shed some light on the situation so that we can figure out whether we're rooting for these two or not. All signs point to that being the case, mostly due to the fact that Breckenridge will now be a This Is Us series regular.

We'll probably find out how Rebecca and Miguel got together. Breckenridge wasn't the only person to get a promotion during the show's summer hiatus. Huertas was also upped to a series regular for Season 2, meaning we'll be seeing a lot more of Miguel. And hopefully that means we'll find out how Miguel went from being Jack's best friend to Jack's wife's second husband.

There might be a Christmas episode. NBC Entertainment chairman Bob Greenblatt told reporters that, in addition to the post-Super Bowl episode, another potential tentpole of Season 2 will be a Very Special Christmas Episode. PSA: Those travel packs of Kleenex make for great stocking stuffers.

Kate's stuck in the middle. Kevin moves back to LA to begin work on that Ron Howard film he got offered in the Season 1 finale, and falls right back into leaning on his twin sister Kate, even though he fired her from being his personal assistant in Season 1. Unfortunately, that doesn't sit too well with Toby (Chris Sullivan) as he and Kate attempt to navigate the ups and downs of cohabitation.

Sly Stallone is dropping by. On the set of his aforementioned new war movie, a veteran actor played by Sylvester Stallone takes Kevin under his wing. Sly's character acts as a mentor to Kevin and offers him advice about being a leading man in a blockbuster movie that's poised to catapult him into A-list stardom.

The Pearson family may get a new member. Randall (Brown) and Beth (Susan Kelechi Watson) will continue to explore adopting a third child, Watson tells TVGuide.com, but a sneak peek at the new season indicates that Beth isn't quite as on board with the idea as her husband is, and it may cause quite a rift between the normally totally-in-sync couple. Brown has hinted that Randall and Beth are able to reach a compromise eventually... but at what cost? On a brighter note, if they adopt a baby boy, perhaps they can name him William?

William's back! Speaking of William (Ron Cephas Jones), Randall's biological father is gone but not forgotten. Jones has confirmed that he'll continue to appear in Season 2, in flashbacks that will answer some of the questions fans still have about William's life and fill in some of the gaps about his history before Randall came (back) into his life. That includes "how his relationship started with Jesse [and] some of the musicianship that went on early in his life," Jones tells TVGuide.com

More Beth! Kalechi-Watson has made it no secret that she would like the show to introduce some of Beth's relatives. Will Randall's in-laws come for a visit in Season 2? Odds are pretty good. Also, it's about time we found out what Beth does for a living — and Kalechi-Watson tells us we can expect that as well.

Will we finally learn how Jack died? Yes! Though we saw Jack's funeral in Season 1, Brown has confirmed that in Season 2, we'll definitely find out the details about the Pearson patriarch's death.

This Is Us returns Tuesday, Sept. 26 at 9/8c on NBC.