Although it's not coming out for a year, we already know that the show will feature an all-new villain, the Inquisitor, who (according to Dave Filoni) is "tasked by Darth Vader to hunt down the remaining Jedi knights". I did some research, and apparently the Imperial Inquisitors were force-sensitive agents, which would explain the Darth Maul-style double red lightsaber. The newly-released picture of him is below.
Many of the creators, producers, and animators of this show appear to have worked on The Clone Wars also, so I hope that we can expect something along the same animation and plot quality. Besides the fact that no show will ever be able to replace The Clone Wars' place in my heart, I only have one problem with it: the show is on Disney XD.
Now, I can imagine that in the cartoon-watching world, Cartoon Network is more respected than Disney XD. And I'm not just talking about overall network quality. Cartoon Network and Disney XD both have their share of horribly idiotic shows. The main reason why Cartoon Network is more respected is probably just because the word Disney is generally associated with kid-friendly fairy stuff. But, let me point out, we all thought that Star Wars: The Clone Wars would be all kid-friendly and stupid too, and we were (eventually) all proved wrong.
The only thing I can say for sure is that nobody should be wondering why The Clone Wars was on CN but Rebels is on DXD (an abbreviation that I spontaneously made up). Star Wars: The Clone Wars, undeniably, shut down because of Disney. Dave Filoni might say that he was planning for the show to end anyway, but he was probably midway through the creation of Season 6 when he got a call from a Disney executive telling him that his show was getting canceled. So, when they started a new show, they wanted it to be on their own channel.
By the way, this is kind of unrelated, but in the past I've gotten some unfavorable messages in my comments. If you try to get a rise out of me or annoy me or something, you might not be glad that you did. I tend to get kind of harsh when it comes to things like this, and I get super defensive and hyped-up and furiously energetic.
But if you have any constructive or complimenting comments, feel free to post them. May the force be with you all.