Seems that we'll be seeing Harlequins again in his gym. Also, with the new gym music, which is real soothing-sounded, I'm curious to see if all of the other gyms will be receiving new music instead of the standard music that they had for every one of them. I think it's more than likely, honestly.
Also, not a fan of Burgh's team. Vespiquen would have been a perfect addition seeing as it's making an appearance to the game's pokedex.
Judging by Burgh's Gym, hope of varied Gym Music is a possibility.
And wow, Vespiquen's is in the Pokedex....that's a missed opportunity. Just swap out Dwebble for it and there's a better challenge in my opinion.