Oh, Korrina will actually be traveling with them? I hope she will, at least for a while, because I like the way she looks from the intro, and they've done a really good job with the Gym Leaders so far, so I'm excited to see what she's going to be like. I like that Shauna, Tierno and Trevor are in as well, especially with the Kanto starters, and I hope they'll be recurrent characters.
It's incredible how a single shot of Ash's Hawlucha managed to sway my opinion so much. I really don't like Hawlucha, but this one looks so happy and cute, what's up with that? And yay for Fletchling evolving! Clemont and Serena don't seem to get any new Pokemon, but I don't think that'll be a huge problem, since it looks like there will be some very exciting content coming up.
The animation looks lovely, I like how they show each character with their Pokemon. The battle scenes look great, I especially like the way they transitioned from the battle against Diantha to the battle against Korrina. Also the closeups of Diantha with Gardevoir at the end, and freakishly-long-eyebrows-guy Gurkinn with Lucario with the Tower of Mastery in the background.
On to the actual song, well, I never liked remixes, especially when I really liked the original song. This one is very upbeat though, the effects are surprisingly nice. It took three or four repeats for it to grow on me, but I still like the original a lot more.