I would love to see the original six ponies make some sort of appearance. I know that they "lost the copyright" to the names, but they wouldn't have to be named. they could be like Celestia's counsel of elders or something, with just a screen shot with them in it.
I second sea ponies! Plus, we haven't had a "beach episode" yet.
I'd love it if any G1 pony showed up, period. Complete with the right colors, or at least some other visual cue to clue fans in, other than just the name. In fact, I was incredibly disappointed to see that none of the background ponies, save maybe (MAYBE) Bon Bon and a green Medley-like pegasus, were references to the rest of the franchise. Guess Transformers spoiled me in that regard.
But speaking of likelier inclusions... I'd say Minty and Toola Roola.
I'd love to see where they'd take Minty's G3 persona, which, judging this series, would be awesome (friendly + naturally nervous + extreme OCD + clumsy + cranked up to eleven = BOOM).
And Toola Roola, well... I can totally picture her as either an artist looking for inspiration or an aspiring designer... Who'd probably look up to Rarity. ...Come to think of it, doesn't Core 7 Toola Roola have most of G3 Rarity's colors? References!
Regarding "sea ponies": I was just thinking the other day about what kinds of mythological creatures we haven't seen in an episode yet. I came up with: mermaids, harpies and sphinxes. I guess we could also add hippocampus to that list. (Hippocampuses? Hippocampi? LOL.) That's a creature from Greek mythology that is half horse, half fish. (It's also a name for a part of the brain, but whatever....)
I'd love the inclusion of older ponies Instead of their original names, maybe they could be referred to by their surname (like the Cakes are) to leave it open to speculation. I wouldn't mind a G3 pony either
Seaponies or hippocampi would be amazing too! I don't know if it'd be possible, but I would love to hear a modern version of the 'Shoo Be Doo' song
If they want to stick to G4 ponies, they have tons of options with the toyline exclusives! I love so many of them, it would be awesome to see them shine.
Wow, I would love to see G4 sea ponies. I am sure they would be too adorable. I would love to see the G1 So Softs, Twinkle Eyes, and Twice as Fancy. They were my favorite sets.
I'd love to see the sea ponies, or the twinkle eyes! I know they said no humans, but what about elves and gnomes? I'd love to see the Moochick again! ^^
Other than that, I'll settle with whatever comes Surprise me, director!
Gosh though, I have this strong feeling our favourites like Twinkle Eyes wont make it in the actual TV series like they did in the old show D: I just loved the look the animators had on them! I do think there is a possibility in releasing them as a toy feature, like they did with the butterfly winged Rainbow Dash etc.
Now my last point: Will there ever be humans? Fairies? The like? I'm not keen on it per se but what's your feel on it?..
Oh and P.S, VioletBunnyfish, as soon as you mentioned a modern Sea Ponies Song I instantly had this in mind Super Ponybeat — Call Upon the Seaponies (EuroSHOOBEDOO Mix) - YouTube
...So modern yes. A popular Fan Brony made it. Not my style but hey... so I guess some bronies DO think of the old series!
I would like sea ponies, more main characters who are older version ponies (doesn't matter who whatever rights they have), male ponies and have more Luna
I vote for sea ponies too! Mer-ponies would also be awesome! And G1 ponies making appearances would be great! What about some Twinkle Eyed ponies or Sparkle ponies?