Being totally honest, I’m not surprised that Theo is not in the last scene with the pack, one year later, because I don’t see him as an explicit piece of Scott’s pack. Not now, not in the future.
I mean, if he’s in the pack as member, the parents should be too, same for Parrish, Peter, or Deaton, or Mason and Corey. But they are not, because they are allies and friends, ready to help and watch Scott’s back. Everyone of them would fight with the McCall pack and it’s absolutely amazing that, during the years, we can consider them almost unofficial member of the pack, because Scott respect them and vice versa.
But they are not official members: they are more part of the big whole team that the McCall’s pack is. Scott says this in his last speech too: some of them show up when the pack needs them, others are always around as well, some humans, some not. The parents are there as protection and back up of their children (yeah, Argent too), Parrish and Deaton are background but important figures with their own lives who keep themselves out, until something happen; while the younger three, Mason, Corey and Theo, for me, are linked to Liam the most, everyone for a different reason.
We know Liam’s training for being a second Alpha or, in the future, the Alpha of his own pack, so if he will have his close cluster I’m pretty sure Mason, Corey and, yes, Theo will be eventually part of it. If there something that the McCall pack teaches to us and to every villain of the show, it’s that a pack it’s not made only of supernatural rules and bites, but it’s made of trust, feelings, friendship, love, loyalty, respect and so deep bonds that everyone would fight not only with the other members, but for the others, as much as they would die for each other. And, even everyone of them trusts Scott with their life at this point, I’m of the idea anyway that, considering how we are leaving them, Theo would fight and die only for Liam, Mason for both Liam and Corey, and Liam would do it for any of them as well (even he’s still too proud to admit that to Theo’s face).
Right now Mason and Corey don’t really trust Theo: yeah, we saw this with Mason’s fear of give his back to Theo, who betrayed them in the past and tried to kill Scott, using the pack and Liam specifically against him. But I’m faithful that Liam will work as glue during the time we won’t see them growing up and that his friends will figure their trust issues out at some point. Also because, at the beginning, the only member of Scott’s pack was Stiles, until adventures and feelings added pieces at the family: everyone with their own story and some of the them weren’t totally good (Derek was an ass during s1-s2 and now everybody loves him bc it’s how life works: people change, people forgive). So, yes, officially they are Scott friends and allies now, part of his big team that is trying to help others like them, but I don’t think the whole Liam as Alpha thing was casual on the show: it could be a prompt for a possibile real future of the now little Beta with anger issues, who will become a great leader one day. Maybe Nolan will be part of the pack along to Liam, Mason, Corey and Theo, because he knows too things now and he seems to be friend with Liam too, without counting he practically own his life to the ones he fought during the war while his side manipulated him, but we haven’t too much clue about him right now. Maybe he will join the new pack, maybe not, or maybe he will be a background figure who will help them occasionally, but I’m confident that Liam will have his own pack made of people he loves as much as he loves the one he comes from. And honestly I’m totally on board for this.
okay so does anyone still have faith in endgame sterek? not being a pessimist, i just haven't been around the fandom often so i'm a bit out of the loop.