We saw her in Winterfell with the welcoming group. I think we'll see her play a bigger part in the next episode as Jaime's here now
How long's it been since we had so many main characters in the same place? Not since Episode 2 of Season 1, I would have thought, when in addition to the Starks and Lannisters we have now, we also had Ned, Cat, Robb, Robert, Cersei, Joffrey, plus some Tier 2-3 characters like Jory Cassel, Maester Luwin and Osha. I'm not counting the less important children that never did very much.
Meanwhile, not here in that episode but here now, we have Brienne, Davos, Varys, Missandei, Grey Worm, Dany, Jorah Mormont, Gendry and Sam.
Huge cast, and due to get bigger next episode.
It's probably quite hard to manage all of them in the same place at once. Luckily they're probably going to be mostly committed to fighting in about 1 episode, and many of them dead.