On Wikipedia there are some episodes from season 3 that has been released.

Episode 3: Too Many Pinkie Pies
Pinkie Pie clones herself to spend more time with her friends.

Episode 4: One Bad Apple
Apple Bloom's cousin doesnt want to be a Cuite Mark Crusader and becomes a bully
Episode 5: Magic Duel
Trixi returns!!
Episode 6: Sleepless in Ponyville
Scootaloo has nightmares after hearing scary stories
Episode 8: TBA

Episode 9: Apple Family Reunion
no info
Episode 10: Spike at Your Service
no info
11-13: TBA

So what do you guys think? Do these episode titles sound good? I like the idea that we get to see more Apple Bloom's and Applejack's family. However I wish we could see the other girl's families. I don't like Trixi, but for some reason I think it's great we'll see her again. I hope the episode she's in is better than the one in season one. By the look of things there aren't any Rarity, Rainbow Dash, and Fluttershy theme episodes. :( I hope the TBA episodes feature them.

I left out episode 7.

Title: Wonderbolt Academy
It's about Rainbow Dash going to the Wonderbolt Academy. Cool we'll finally get to see more of the Wonderbolts.

I'm excited to see them all, but the ones I really want to see are episodes 5 & 7. I would love to learn more about the Wonderbolts as well.

GUYS! episode 10 won't air until January 19. The episode will feature Discord! :D It's a Fluttershy center episode too, because she's not willing to give him a chance. Then episode 11 (wiki marked it ? probably because they Apple Family Reunion episode 8 instead of 9) is about Spike pet sitting the mane 6's pets.