My verdict: I still like the series and the characters, but it's less and less a show for children. But the messages they are trying to send are getting shakier and shakier and moral relativism continues to intrude on the series. For example, the main characters are constantly forced to form alliances with their enemies and they frequently discover treachery in their own ranks. Since they've decided to portray violence and murder, I'm at least impressed that they're finally killing off some major characters. On a positive note, the storytelling has also become more linear over time.
My biggest complaint, though, is in their portrayal of Anakin. Despite the Jedi injunction to control one's emotions, Anakin frequently and transparently shows anger—even in front of other Jedi—yet no correction is given. They don't seem to be concerned at all that he is flirting with the Dark Side of the Force. Even though it seems to be rushing, keep in mind that this series ultimately has to end with Anakin taking another step toward embracing the Dark Side:
 You can read my reviews of previous seasons here, here, and here.
 See http://starwars.com/news/a-new-direction-for-lucasfilm-animation.html.
 See http://starwars.com/news/new-animated-series-star-wars-rebels-coming-fall-2014.html.