Hear me out, friends.
I, personally, want to see more character development for Diamond Tiara and Silver Spoon. Why? Because I have a great dislike for 2 dimensional villains whose only purpose is to provide conflict for the protagonists. You would think that, with MLP: FiM, the writers would know that their audience expects more than the usual tropes. I also speak about the precedence that Lauren Faust set for the series in making a high quality cartoons for girls, and not just bronies themselves. I think most of us can agree that DT and SS were created for the sole purpose of showing children how not to act. Thus they are made to be hated, and if you hate them you are acting the way the writers want you to. However, no person is mean without cause. This is true for ponies as well. A backstory would go a long way to explain why DT and SS act the way they do, however I sincerely doubt that the writers will afford DT and SS that kind of dignity.
Why do I say this? Because of the episode " One Bad Apple". The theme of it is that a villain (Babs) is portrayed as an antagonist, but her character evolves throughout the episode ( written quite poorly I might add, as it felt rushed and contrived). They become something more through our understanding of them. The very theme of this episode was better suited for DT and SS. Think about this for a moment. DT and SS already had establishing characteristics, and in addition they also had meaningful relationships with the characters already. Apple Bloom namely. It just makes more sense to have that episode enhance our understanding of already established villains so that they become something more, and thusly accomplish what Lauren Faust set out to do originally. Break barriers of perceptions, especially in regards to cartoons for girls. The very core of what we admired in her, and her work. If the writers would rather shoe-horn in a brand new character to fill such an important role in the theme of this episode, than allowing well established characters that would have been a much better choice for that role. What chance do DT and SS have for an absolution?
I disregard the fanfiction accounts of DT and SS, as I believe they are nothing more than mental masturbation on the part of some people who crave a catharsis for their own inner demons. Dark and evil things that the very authors of these fanfictions created themselves. These very things, DT and SS have never actually done, but people expect it of them. Why? Because we are made to hate them, and it's just that simple. I find it ironic that the writers have only shown us the worst of DT and SS, and never have shown us the good parts. This is ironic in that this is what haters do with us to non-bronies who know nothing about us. They show these non-bronies only the worst of our community, and so the non-bronies tend to view us in a bad light because that is all they know about us. The same is true with DT and SS, and I won't even talk about all the pictures and stories I see where people depict these two being harmed, maimed, and even killed brutally for the very minor offenses they have committed. The very same is what haters would do to us. So for me the tale of DT and SS is eerily similar to our own reality as bronies.
There is one thing I do expect of Season 4, if my hunch about the writers is accurate. They will do the single most hurtful thing to Diamond Tiara they could ever do. That is to take away her only friend, Silver Spoon. Consider how SS is portrayed as somewhat nicer than DT. Her presence is merely to amplify DT's mean side from a writers perspective. Kinda like how somewhat large people will hang out with even larger people so they look better by comparison. While rich ponies are generally portrayed as snobby and elitist (Sweet and Elite, and The Best Night Ever), and for the most part are only kind when it is convenient for the plot ( Fancy Pants because Rarity needed some kind soul to help her out of her situation, and Filthy Rich to provide a leverage force against Diamond Tiara) we can draw a conclusion that the writers are generally biased against the wealthy. Which is very common in writing. They generally provide a poor perception of the wealthy, and create a standard in doing so. It is also from this that I would believe that the writers won't give DT or SS any redeeming traits or the dignity of a backstory that would raise them above the mold the writers have forced them into.
If you have read this far, you have my thanks. Most would have turned away at the outset, and for you to have read this far means that you have a genuine want to understand. Which is more than I can say for most. With this I ask that you look at DT and SS with that same want to understand, and not blindly accept what the writers have told us to think. DT and SS may never know redemption, and the path of redemption is never easy. Though I do believe we have all done things we regret at one point. For this reason we are all walking that path, marching ever forward to become a better person through our want to change and understand each other and ourselves. The most important part is that we do so, together, hand in hand.
Thank you.