I think her character had more impact on the story. I would like to see all these characters return, but Trixie would definitely be the best in my opinion.

Braeburn!

Braeburn

SO MANY CHARACTERS (Season 3 might be a tad too early for some, but anyway...) Of these choices....

Would be great to see Braeburn again!! I loooooove him! And of course, Trixie would be highly interesting. Gilda, too. Certain antagonistic characters such as them would probably do well to have some further development. Spitfire rocks, but the Wonder Bolts have appeared in multiple episodes, so hopefully we will see a WB-centric one. That's one of my many hopes for the next season or two, naturally. I'd love to see Dash hanging out with or finally getting a chance to join them. 8-3 I fully expect at least one return of Discord, but we'll have to see whether it is in fact a Season 3 occurrence or not....;)

the great and powerful trixie!!! and I'd love to see discord back too but trixie coming back is probably more likely

DISCORD

The Great and Powerful Trixie will return!!
(but id like to see Braeburn again as well)