So, not sure if this is an old theory or not, I don't really follow the social media furor about this, but watching the new trailer from Japan, and it's new scenes, kind of makes me think of a new theory.
So here it is:
Kylo Ren is Luke's son, who went Dark, and his failure as a father is one reason why Luke has been in hiding for years. This would explain how Kylo has force training, but also why he has an obsession with "finishing what Vader started". It's his grandfather's legacy after all. This idea does have a big plot hole of "well why didn't Luke teach him that his father was redeemed, and thus removing any need to complete a false legacy?" This is a good question, and I don't have an answer for it.
And that Rey, is Han/Leia's child, and thus Kylo's cousin. This would be similar to the "I'm your father" twist, without being the same. And it would provide an interesting bit of dramatic tension. Rey, who probably has never known any family, not only finally meets her parents (who sent her into hiding for some reason), but also that she's got a cousin. This will make her reluctant to kill him, and thus try and turn him to the good side, but will probably fail, since he's got to be bad for at least one whole movie.
And John Boyega's character is just someone else who comes from a force sensitive line, to establish that it's not just the freaking Skywalkers that have force powers.
So here it is:
Kylo Ren is Luke's son, who went Dark, and his failure as a father is one reason why Luke has been in hiding for years. This would explain how Kylo has force training, but also why he has an obsession with "finishing what Vader started". It's his grandfather's legacy after all. This idea does have a big plot hole of "well why didn't Luke teach him that his father was redeemed, and thus removing any need to complete a false legacy?" This is a good question, and I don't have an answer for it.
And that Rey, is Han/Leia's child, and thus Kylo's cousin. This would be similar to the "I'm your father" twist, without being the same. And it would provide an interesting bit of dramatic tension. Rey, who probably has never known any family, not only finally meets her parents (who sent her into hiding for some reason), but also that she's got a cousin. This will make her reluctant to kill him, and thus try and turn him to the good side, but will probably fail, since he's got to be bad for at least one whole movie.
And John Boyega's character is just someone else who comes from a force sensitive line, to establish that it's not just the freaking Skywalkers that have force powers.