JJ Abrams et al seem to have solved the problem of coming up with a plot for Episode VII, by - to all intents and purposes - remaking the original Star Wars: Episode IV - A New Hope.
"Daddy issues" from The Empire Strikes Back have also been grafted on to the new film. Practically every major character - it is at least implied - is the abandoned offspring of another. For all that the films are chaste, the inhabitants of the extended Star Wars universe must be at it like knives whenever the camera is pointed the other way.
I wouldn't be at all surprised to discover in Episode VIII that the adorable new 'droid BB-8 is the result of a drunken R2-D2 getting off with C3-PO at a party after the Death Star was destroyed.
Further - the bloodlines now being so limited and entwined - we may hear "Duelling Banjos" on the soundtrack as Yoda speaks from the hereafter:
Marry him you may not, honey-chile. Your cousin Billy-Bobba is, and his niece, you are.