This just makes it seem like the whole friendship thing was a lie and the true motive was grooming Twilight to be a princess with her friends being nothing more than stepping stones to her ascension. I mean, what would've happened if Twilight decided to go back to Canterlot after Nightmare Moon was defeated?
And aren't we all a little sick of Ash by now?
I mean, I know it would be predictable if he won EVERY tournament, but he beats every gym and evil organization just to lose in the end?
They could get by with a new main character, just make sure they have a Pikachu!
"Well, Princess, now that I've defeated Nightmare Moon, I'm ready to go back and continue my studies."
"No, Twilight, you have to stay here."
"So you can use your friends to help groom and prepare you for princesshood!"