Actually none of that matters. Star Wars movies are now just long commercials for Star Wars toys and merchandise.
They need to have an Empire Strikes Back ending to fully erase the shame of the prequels, and show that this is going to really be a serious take on the franchise.
But its likely that this will have a nice family friendly (whatever constitutes a family in 2015) ending because it is a Christmas release.
Actually none of that matters. Star Wars movies are now just long commercials for Star Wars toys and merchandise.