Now I do want Lt. Connix could be revealed to be Leia's secret daughter. I know that's unlikely (either J.J., or Billie Lourd wouldn't be up for it), I know it's a silly one-trick rehash ROTJ and ROTS, and I know it's against what TLJ said in regards to the unimportance of bloodlines, and that Star Wars has focused on Skywalkers way too much already. But screw all of that.
I didn't know who Billie Lourd was back when I was watching TFA, and I had barely noticed Lt. Connix then (it's weird that I do remember her lines, yet didn't realise she was there), so when she appeared on screen in TLJ I was... absolutely shocked, and every time they interacted I was as moved as when Leia nearly died. And I also couldn't shake the feeling that the Lt. and Leia were somehow related in every scene where they faced each other, like when the General put an end to that silly mutiny of theirs, or when I was trying to figure out what was Connix' role in it and where she stood.
So call it ridiculous, but I left the theatre convinced Connix was a Skywalker. Or someone Leia had cared for. Or someone who would in some capacity succeed her. And I seem unable to convince myself otherwise.
I know it's not happening, but it just feels right, now when Carrie Fisher is not here. I miss her so much. She's just so awesome, as a person, and General Organa was so unexpectedly good in TLJ...