Season 3 episode 13 revealed (Spoilers) · 7:27pm Jan 19th, 2013
Magical Mystery Cure
"When Twilight casts a spell that switches the Cutie Marks and destinies, the only way to reverse the spell is by writing her own magic."
I think I would like to see Celestia and Luna's powers get switched. I think it would be quite humorous. Possible personality changes in this episode as well which would be great to see. Not sure yet how Twilight growing wings will work into this (If it does at all). Either way it should be an awesome episode.
For further inquiries, see: Equestria Daily
On another note, episode 10 "Keep calm and Flutter on" was a great episode. It brought about the fact of dams affecting land in Equestria and further solidifies the thought "How much damage a dam can do if placed in the wrong area" in Grasping Happiness, making the plot more believable then before.
Also, Brace yourselves for FluttershyXDiscord fics
As a card carrying member of both the 'Discord Haters' and 'John de Lancie is Da Bomb' clubs, I both loved and hated this episode. Discord, he's just a cheap knock-off of John's much better Q character. But this episode was really nice and had a great message. All in all, a solid 8/10 for me.
So basically it doesn't going to affect your story at all,
Discord is like that nasty piece of gum on the bottom of your shoe. Little bugger just doesn't want to go away, no matter what you do.
Shy and Discord fics? Eeeeewwwww.
Why stop there? There the possibility for a few really great crackfics where Fluttershy and Celestia get into a brutal competition for Discord's affections.
Of course, it'd be insane, but it'd be funny too. Maybe.
'writing her own magic'? how... who... how is that possible? how is she supposed to write her own magic? all the magic she knows, she read.
727889
Knowing some of the authors on this site, it will probably be written at some point
728030
Don't ask me, that's just what the synopsis says. For all we know they might give us an entire new mechanic on how spells are made by magic users.That would be pretty cool to work with