3) It's conflicting with canon - well Star Wars "canon" outside of the movies is fucking stupid and I hope it does conflict with the awful canon. I mean it's thirteen year old fan wank at best. It's shit like a moon crashing into Chewbacca while he yells at it and Boba Fett crawling out of the Sarlac pit only to become the king of Mandalor. It's shit that's so fucking dumb that it needs to be destroyed canonically. Also, JJ Abrams made a Star Trek movie that can be considered both canonical and noncanonical at the same time. I think he knows what he's doing.
I resisted at first but I am with you. Mind you I REALLY enjoyed reading the hundreds of comics and tons upon tons of books that I have been through, for the most part, they were fantastic, but yes occasionally the pen would be put into the wrong hand, and stupid cannon was created as well.
With that in mind, I am actually thinking that this new script, if real, makes more sense for a Jedi Mystic like Luke who just spent the past decade developing within the strange world of the force, and then once he became master, he beheaded the Empire, he killed his own father, and well all sorts of trauma inducing events.
It would make sense that he would vanish, go off and meditate, develop, research, prepare, because the task of starting a new Jedi Temple is not easy, it would not be a case of,"oh, it's the day after the Battle of Endor, let's go deal with the remnants of the Empire, and start hunting for new children to train in the ways of the force..."
No, I'm thinking all that would take time to fall into place, Luke would vanish, Lea would continue with the resistance, and Han... well who knows where time has taken Han and Chewie in the mean time, but in retrospect, I think things would develop and unfold slower than they did in the old sequel books.