Villians for MLP season 4... most probably Nightmare Moon or Queen of the Changelings. The previous episodes ive watched have some kind of sequence and im not sure if they are planning to proceed on Season 5. Id noticed that the first villian was female (Nightmare Moon), the second was male (Discord), third was female again (Queen of Changelings), then fourth was male... again (King Sombra). Season 4 is most probably female, then Season 5 (Which may be produced, im not sure yet) would most probably be male as well. Its a sequence!!!