thegnome, it's all just people speculating. Don't worry, you didn't miss anything. Rey isn't Luke and Leia's child. Rey isn't Luke and Mara's child. Mara Jade may exist in this new canon at some point, but Lucasfilm is honoring George's wishes, and one of the biggies is that Luke never hooks up after becoming a Jedi. So, given Rey was born a decade after ROTJ, that sorta excludes him.