The current characters are pretty much done. We need some new ones. A lot of new ones. This show’s world is brilliant, so why not move the story somewhere else? Close the book on the current characters, move the setting somewhere else, and introduce an entire cast of new characters with their own lives, challenges, fears, aspirations, goals, personalities, and insecurities.
Hell, just make a new show.
There are a lot of people in the world. There are a lot of ponies in Equestria. There are a lot of stories to tell and a lot of places to see.
Let’s see what’s going on elsewhere in Equestria. I vote for Hollow Shades with a cast that is 33% batpony.
@Tyrranux
Or it could just be that FIM is starting to get stale? The CMC finally got their cutie marks, so they had to throw in a new friend for them in Gabby. The Mane 6 got Starlight as a new friend. When a show starts getting stale one of the ways to try and keep it fresh is adding in new main characters. The Map also serves that function in bringing us to new locations every once in a while. Then there’s stuff like the mane 6 not saving the day or the background characters getting an episode focus.
Lately I’ve been asking “What’s left?” They’ve redeemed all the bad/evil people, like Diamond Tiara, Discord, and Starlight, the CMC got their cutie marks, Rarity and Rainbow finally achieved their ambitions, and Twilight, Applejack, Fluttershy, and Pinkie Pie really have none besides what they’re currently doing. Where else can the characters grow? And the writers might have realized that, hence my statement above about Starlight being the new Twilight to begin the lesson learning process again.
Obviously it isn’t working for you.
I haven’t even finished watching season 6 so I can’t really judge its quality as a whole. I’ve grown less interested in the show and more in created content by fans. I also write decently popular fanfiction, so I try not to get new ideas that might pull me away from my current work until I’m finished.