Of course, with Disney pulling this crap now, it's in the air. And yes, I won't be happy about Disney wrecking KOTOR, Legacy, and other stories for me.
How are they wrecking it? The stories still exist, don't they? You can still read them\watch them\play the games whenever you want, can't you? So what if those stories aren't acknowledged onscreen? Except for a couple of tiny cameos in the PT, none of that stuff was ever referenced onscreen anyway.
This changes nothing, in reality. I love the Heir to the Empire books. Despite whatever happens in these new films, I can always go back and re-visit those stories and I'll still enjoy them.