Now, they didn't say they were throwing out anything specifically, More so, they said that they need a blank slate.
They are already picking and pulling from the EU (Just look at clone wars and all of the things that they pulled).
I could see modified history in the period before the Vong. Anything after that though is probably trashed... Heir to the empire really could stand by itself with a few changes.
Also, the X-wing series, though big and pivotal, could exist without being destroyed.
They can't disillusion fans too greatly. Core fans provide great advertising.
Honestly, I bet we will see the HWK-290, the Tie Phanom, Tie Defender, E-wing, and the Z-95 in other, future products still.