I honestly doubt that the movies won't be available individually when they hit blu-ray. Despite what George and Rick have been saying since '99, they and the rest of LFL know all too well how people feel about the movies and they're not gonna be stupid about how to make money off this release. Sure, there will probably be a saga boxset you can get, but they won't limit the options to that or even just two trilogy boxsets. My prediction is that the movies will be available individually and in a six-film set.