The only interesting thing they did with any of the Gym Leaders was with Elesa and changing the Gym Puzzles, but other then that most of the returning Gym Leaders didn't get anything that new or impressive. In addition to that, the new Gym Leaders didn't get much either. Cheren and Roxie are the first two Gym Leaders so they don't get a lot of Pokemon and Shizui only got 3 Pokemon. I don't understand why they don't give the last Gym Leaders that many Pokemon. The first two not having that many I understand, but by the time you get to the middle batch you should see an increase and by the seventh and/or eighth they should have 5.
The same goes for the Elite Four. Only 4 Pokemon when first versing them? They should have 5 like other generations. Black & White had the excuse that Team Plasma plot was going to disrupt the Elite Four & Champion challenge, but in Black 2 & White 2 there's no excuse.
Now the Elite Four do get a full team of 6 after the National Dex, though I hope they do the same for the Gym Leaders (I heard you can battle them in the World Tournament, though I think that only uses 3 Pokemon for the NPCs so that's not what I'm talking about).
Speaking of disappointments, Alder, why are the Striaton Triplets, Achroma, and your OWN GRANDSON stronger than you? I mean we can only battle you once, why are you leaving with a whimper? Then again he does have a full team of 6 though that didn't stop Achroma from being stronger and only able to be battled once.
If I remember correctly, Game Freak wanted to make the games easier for the kiddies. That's why Unova is so linear, HM's are gone, the Gym Leaders never have more than three Pokes, the Elite Four are all at the same levels, and all Trainers all use the same "most Pokemon share the same level, while the last Pokemon is two levels higher than the rest" gimmick. Please stop it, Game Freak. Please.
Oh, and guess what.