I’m not taking what she said literally, but if I had to guess, maybe Han will have some voice used in mysterious visiony-flashback things etc. Since this one did that kind of thing instead of a full on flashback scene.

Very excited for the future of a long time ago in a galaxy far far away! I forsee some fun training scenes with Luke and Rey, and I really look forward to what hijinks Fin and the resistance will be up to as well. Plus of course, going deeper and darker places with Kylo.