Probably. When he flew away after the library was destroyed, it is unlikely that Twilight was just letting him go. Most likely he was just flying off to a safe place, away from Tirek.
My Little Pony: Friendship is Magic
My Little Pony: Friendship is Magic premiered on October 10, 2010.
The Crystal Empire is the Rainbow Kingdom in your Little Pony Friendship is Magic.
My Little Pony: Friendship is Magic premiered on October 10, 2010.
Season 1, Episode 1: Friendship is Magic
My Little Pony Friendship Is Magic - 2010 The Return of Harmony Part 2 2-2 was released on: USA: 24 September 2011 Ukraine: 1 July 2013 Japan: 8 October 2013
My Little Pony Friendship Is Magic - 2010 The Return of Harmony Part 1 2-1 was released on: USA: 17 September 2011 Ukraine: 1 July 2013 Japan: 1 October 2013
The creators of this series are implying that friendship has a deeper meaning, and each friendship is "magic".
Yes, the Twilight's kingdom from My Little Pony Friendship is Magic is the Rainbow Kingdom.
My Little Pony Friendship Is Magic - 2010 was released on: USA: 10 October 2010
No. My Little Pony: Friendship is Magic is a work of fiction. A work of fiction cannot prove the existence or non-existence of anything.
S2 E1 "Return of Harmony"