Originally Posted by
sonic_discord
Unless they just didn't recognize her as an adult because they hadn't seen her since she was a baby? I will say that if that were the case, Leia should have figured it out since she's Force sensitive, too (same goes for Luke being her father).
Unless she ages like Wolverine, she's way too young for that. If they pull the Force-baby/immaculate conception by divine intervention thing, I'd be more inclined to think she's the offspring of Palpatine (and someone other than Shmi) and she was born to balance out the Force since Kylo was fated to turn to the dark side. It would shed some light on the reasons for his inclusion in this movie and why the Death Star remains seem to be the location of Kylo and Rey's final confrontation. I feel like they're making it seem like Kylo might be redeemed, only to have this reveal pull the proverbial rug out from under the audience and have him instead do something (like try to trap or betray Rey) to further cement his allegiance to the Dark Side. Maybe he's been receiving training from the Force ghost of the Emperor (since Vader's force ghost would be Anakin since he was somewhat redeemed right before his death) while hiding out there, just as Rey is likely learning from Force ghosts of Luke and possibly Yoda and/or Obi-wan.