It's bittersweet facing my final chapter without her-She is simply irreplaceable. I'm finding solace in the fact that she won't BE replaced & would love the worldwide outpouring of affection from those who loved her when they heard the news.#CarrieOnForever pic.twitter.com/7ueMqBxQwa— Mark Hamill (@HamillHimself) July 29, 2018
In case you missed it, JJ Abrams will be putting unused footage of Carrie from The Force Awakens in the next Star Wars movie.
Sources: 1, 2
PS: My ontd original about Mark and John's sweet father/son relationship.