Not really. You have Jaina Solo as the protagonist. All the audience needs to know is that she's Han and Leia's daughter and she's a good pilot. You have Mara Jade as Luke's wife. All you need to know is that she's also a Jedi and Luke's wife. They have a son named Ben. Etc. etc. You can have a story that doesn't completely contradict the EU and still be its own story. Now I fully expect the EU to be bulldozed, but that doesn't mean it HAS to be. I wouldn't be surprised if Disney does exactly what they're doing with Marvel comics - taking story ideas and characters and running with them.