Yes, Clone Wars and Rebels are still part of canon.
http://starwars.wikia.com/wiki/Canon
Since then, the only previously published material still considered canon are the six original trilogy/prequel trilogy films and the Star Wars: The Clone Wars television series and film. Most material published after April 25—such as the Star Wars Rebels TV series and all novels beginning with A New Dawn—is also considered part of the new canon, on account of the creation of the Lucasfilm Story Group, which currently oversees continuity as a whole. Characters under the Legends banner are still available for use as needed, even if events concerning them are no longer canon.
On note of that last sentence a lot of people have pointed a lot of the new characters and plots do seem to be taking elements out of Legends, so it wouldn't shock me if we see hem bringing in more elements from the EU.
Re: Canon
http://starwars.wikia.com/wiki/Canon
Since then, the only previously published material still considered canon are the six original trilogy/prequel trilogy films and the Star Wars: The Clone Wars television series and film. Most material published after April 25—such as the Star Wars Rebels TV series and all novels beginning with A New Dawn—is also considered part of the new canon, on account of the creation of the Lucasfilm Story Group, which currently oversees continuity as a whole. Characters under the Legends banner are still available for use as needed, even if events concerning them are no longer canon.
On note of that last sentence a lot of people have pointed a lot of the new characters and plots do seem to be taking elements out of Legends, so it wouldn't shock me if we see hem bringing in more elements from the EU.