My Little Pony Friendship Is Magic - 2010 Call of the Cutie 1-12 is rated/received certificates of:
USA:TV-Y (E/I)
My Little Pony Friendship Is Magic - 2010 The Cutie Mark Chronicles 1-23 is rated/received certificates of: USA:TV-Y (E/I)
Cutie and the Boxer - 2013 is rated/received certificates of: Canada:G (British Columbia) Japan:PG12 USA:R
My Little Pony: Friendship is Magic characters are shown as having cutie marks which represent their special life talent/ability.
The Munsters - 1964 The Sleeping Cutie 1-12 is rated/received certificates of: Argentina:Atp Australia:G
Her name is Diamond Rose in My little Pony Friendship is Magic.
My Little Pony Friendship Is Magic - 2010 The Cutie Pox 2-6 was released on: USA: 12 November 2011 Ukraine: 5 July 2013 Japan: 5 November 2013
It does not appear that any of them did. That would be a rather significant event.
Neither Apple Bloom, Scootaloo, nor Sweetie Belle get their cutie marks in this episode.
My Little Pony Friendship Is Magic - 2010 Call of the Cutie 1-12 was released on: USA: 7 January 2011 Poland: 26 October 2011 Ukraine: 7 February 2013 Japan: 18 June 2013
No. It has been stated that season 6 will focus on exploring Equestria.
The Cutie Mark Crusaders were initially led by Apple Bloom, but the group doesn't have an official leader. Apple Bloom, Sweetie Belle, and Scootaloo work together as equals to help other ponies discover their special talent and earn their cutie marks in My Little Pony: Friendship is Magic.
It is not known at this point, as there has been no word from the writers and actors, who often drop hints on Twitter. If they do it probably will not be until the final season, whther that is is season 4 or some future season.