@Absol95
@09MurphyM
They put quite a few things from the old EU back into canon, things like the Interdictor Cruiser, the Hammerhead Corvette, the TIE Defender and a few charachters as well.
But non of the stories have been put back into canon so far. Thought it might have been possible to put a lot of things back in. But they decided to limited them self with their Aftermath Trilogie. They could have made new versions of the Thrawn trilogy or the X-Wing series, but the decided against such things.
I guess they want to keep things open until episode IX is finished, and then instead of having books and comics they will put a lot of the more interesting stuff into TV-Series and Spinoff movies. After all, a movie or series about Luke Jedi Praxeum would be interesting, you could fill a trilogy with the stuff that must have had happened to Luke. The early years how he searches for artefacts and becomes a true Master of the Force, how he founded his academy and started to rebuild the order, and then how he took in Ben and how it all got destroyed. That alone could be like three seasons of a new animated series.