Assuming the Battle Tree is updated to feature more characters,

>>32693955
Bill

>>32693955
Emma

>>32693955
Give us a Gen 2 trainer like Eugene or a Gym Leader.

>>32693955
Orlando and Anna

>>32693955
More Frontier Brains, both from Hoenn and Sinnoh. Anabel's appearence made me happy, and I'm just a sucker for all things Battle Frontier-related. But I won't be disappointed if we don't get any more Frontier Brains in USUM.

>>32693955
Past champions

Hopefully a pc that isn't Red but I really really doubt it.

N
Zinnia
Leaf
Giovanni
No version exclusive shit

>>32693955
mallow not as a version exclusive

BF/PWT levels of endgame or bust.
Platinum and Emerald at least had that, and BW2 was even a full fledged sequel which this isn't. There is no excuse.

>>32693955
Sabrina

>>32693955
>Kanto
No one.

>Johto
No one.

>Hoenn
Maybe Zinnia for her theme?

>Sinnoh
The Lucario fag.

>Unova
Caitlin. Or Bianca/Cheren. No one else.

>Kalos
Emma. AZ.

>>32694006
This.

File: hyperspace fury.png (150KB, 433x332px) Image search: [Google]

150KB, 433x332px

>>32693998
Returning Frontier Brains will have to wear suits like Anabel.

>>32693955
an actual battle frontier

>Kanto
Giovanni
Misty
Sabrina
Blaine

>Johto
Jasmine
Eugene
Morty
Karen

>Hoenn
Zinnia
Lucy
Brandon

>Sinnoh
Cheryl
Flint's son or little brother (forgot his name)
Dahlia

>Unova
Caitlin's butler from that Sinnoh battle frontier facility
the water or poison gym leaders

>Kalos
don't really care

>>32693955
Brendan and May replace Red and Blue as the double battle in Multi Battle.

>>32694001
That would imply giving them canon teams, Game Freak would never do that.

Every Gym Leader (except maybe Giovanni), Lorelei since she's disappeared from the E4, Cheryl, Marshall, Greta, Lucy, Tucker, Lillie, Zinnia, Barry and Gold+Silver.