I think it depends on the director really - but I still think that even if they include it - it'll be very much part of a subplot, as in we'll just see Hermione stomping past Ron and Lavender - all in the background of Harry being contemplative about Voldemort...:3 Still, Ron hasn't had as much to do in the movies as Hermione and Harry have - so maybe they'll give him a bit more screen time? But it would be pretty easy to cut out all the same...if they decided to focus mainly on Harry. Ginny and Harry will definently make it in though - they'll probably make it the highlight of the film ^_^