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.