"Wait until you see her in The Last Jedi", Hamill promised fans.
"I did some ADR last week, and I saw a little clip of something that I didn't know was going to be in it", she said. Kylo's eyes still seem to be a normal colour, so perhaps killing his father wasn't the final push he needed towards the Dark Side, but instead the first pull back towards the light.
There are already a lot of theories about what Skywalker might mean by saying the Jedi must end. John Boyega as Finn, Oscar Isaac as Cameron Poe and late Carrie Fisher will also be back as Leia as she filmed her scenes before she passed away at the end of a year ago.
When Rey shows up to Luke's island of solitude at the end of Episode VII, she's interrupting his self-imposed exile and expecting him to go against the very reasons he put himself on that isolated island. This is the sort of thing you'd see on Battlestar Galactica, the kind of everyperson companion we get on Doctor Who - indeed, Rose shares her name with the first and most vital companion of that show's new era. Fisher died in December, but filmed scenes in The Last Jedi before her death.
Thompson calls herself a "huge fan of both Gwendoline Christie and Phasma", and says she's looking forward to helping unlock Phasma's "fascinating untapped potential" in the new books.
Hamill told stories of visiting with Fisher and her mother, Debbie Reynolds, in NY and attending incredible parties at their homes in Los Angeles.
While the teaser doesn't say much about the plot, it seemingly suggests that Luke won't be as heroic as everyone has expected, as he says, "I only know one truth. And then, at the end of six hours, there would be like a four-word line of dialogue".
Lucasfilm head Kathleen Kennedy has confirmed the late Carrie Fisher will not be appearing in "Star Wars Episode IX" after her brother Todd Fisher hinted she would.
"11:13: Johnson also thanks fans for camping out".
"We're using each other as therapy today", Hamill said, shortly after he struggled through reading his official statement on Fisher's passing. But he revealed that anything is possible in the movie.
Now here comes Rose, an average maintenance worker for the Resistance.
"To a certain extent, it's not Luke's story anymore".
The last part of the trailer is the bit that got me the most excited and it's something you'll miss if you're not paying much attention.