“I wasn’t going to address this topic. But since so many of you have asked:
What the “non-canon” announcement by LFL means is that they aren’t going to be bound by the Expanded Universe books, comics, and games as they plan their new movies. Realistically, that’s something they had to do – the EU is just too big, complicated, and occasionally contradictory for them to have to deal with.
However, I’m guessing that EU stories that aren’t referenced (or contradicted) by the sequel movies will still be considered sort-of alive, in the same way that most Clone Wars-era stories (like Outbound Flight) were mostly unaffected, with the exception being all of the previous material on Boba Fett’s backstory.
Alternatively, if the new movies do contradict my books in some way, I can probably come up with some hand-waving story that will explain the apparent discrepancy. If there’s one thing we authors are good at, it’s hand-waving.“
– Timothy Zahn VIA Reddit