The Hub's November 2012 Schedule reveals the following episodes to premier in November:
Episode: Season 3, Episode 3
Title: Too Many Pinkie Pies
Air Date: November 17, 2012 10:30 am (Eastern Time Zone - same as blog time)
Synopsis: Overwhelmed with making the difficult decision to choose just one friend to spend time with, Pinkie Pie avoids making the choice by using a magic mirror pond to clone herself. Her plan goes awry when she cannot keep track of all the duplicates.
Episode: Season 3, Episode 4
Title: One Bad Apple
Air Date: November 24, 2012 10:30 am (Eastern Time Zone)
Synopsis: The Cutie Mark Crusaders are crushed when Apple Bloom’s cousin, Babs Seed, rejects their invitation to become a fellow Crusader and instead becomes a bully determined to make their lives miserable.
Both of these were already known, but now we got more detailed synopses. It also debunks the rumored airdate for S3E4 as false, since it gives a different air date.
Oh, and the report didn't give any other episodes, so it's safe to assume that S3E5 (rumored to be "Magic Duel") will come later than November. (Most likely December 1st, if they're gonna keep with the "one episode per week on Saturdays" pattern that we have become familiar with.)