[AcGold]

That is fairly believable that she is the grand daughter of Palpatine, the fight choreography being the most evident. Actually it would make the most sense of all and bring things together better than if she is Lukes daughter. She'll be tempted to kill Luke but betray the dark side (hopefully).

She's also going to become a leader or a general or something. Her affinity to learning force powers is unmatched as far as I've seen. She figured things out in minutes that took Luke days, weeks or months. She has intuitive powers and learns much faster than Anakin ever did. She seems exponentially more powerful than any of them asides from Palpatine and Yoda.