It's probably because the movie was complete trash and they don't want to embarrass the name of Star Wars. I hope they bring EU and Legends characters in now. Forget the new characters Disney calls "canon."
In all seriousness, it is nice to have a break to work on other characters, however I would like to see Hux (episode 7), Snoke (episode 7), TR8R, and Flametrooper. Anyone from the new movie is lame and underwhelming. Snoke and Hux aren't even cool to me anymore and I think EA might know that.