It's possible they'll ignore it, but if I were putting money on it I'd say they'll keep elements of the EU, at least the broad strokes.
They're being based on treatments that Lucas wrote, and given that he's said in his world he'd have gone in a totally different direction than the EU, most likely theres not gonna be a whole lot of it in there. Not to mention it'd be best if Star Wars didn't become a bunch of loose adaptations like Superhero films. Really depends on the story though, they'll probably use elements as inspiration.