For pete's sake Luna and Discord have already two episodes where my favorite princess has none! Sure she has episodes centered around her, but it's not her episode... I mean, she either shows up for five or less minutes or just responds in a letter. Luna and Discord already have two. Discord, three if you count "Three's a Crowd" or/and "Keep Calm and Flutter On," and Discord's a villain for pete's sake!
And now from the looks of it, the writers don't care all that much about Celestia as they do Luna. And Cadence is kind of the mary-sue princess yet lacking noticeable flaws. So my biggest hope for Season 6 is that Celestia gets her own episode. Anybody agrees with me?