According to BronyDE the S7 trailer comes next month. And maybe the S7 villain will be Shadowlock. http://www.equestriadaily.com/2016/12/exclusive-my-little-pony-friendship-is.html
They did state that the Comic Main Series 50 arc would connect to S7 so it's possible at least. If so it would be the first time the comic and the show are connected together which could indicate that the comics are canon. Though honestly I was hoping the S7 villain would be Nightmare Star (Nightmare Moon version of Celestia) but maybe Nightmare Star will be the villain for the movie? What? There's nothing that states I'm not allowed to hope.
If this season delves into Equestrian history, particularly its beginnings, I'm almost certain to be disappointed. I have no faith that their ideas will be either inspired or imaginative.
Doesn't matter to me one way or the other. If I feel it's significantly funny or awesome, then I'll watch it regardless of the content. (Bits and pieces of it, anyway.)
Starlight Glimmer becomes an alicorn, Chrysalis is reformed, and Spike is the new ruler of Equestria!!! OK, joking aside, I'm thinking that Thorax and the reformed changelings will probably be making another appearance. Whether it's major one or minor isn't clear but I hope we see them again soon!
I honestly hope that Nightmare Star never makes an appearance. I prefer the depiction of Celestia as the wise and fair ruler that we've seen so far, and I'd hate to see her be corrupted. If we ever do get a corrupted Celestia, I'd hope that it's a scenario where's she's being used against her will by the real Big Bad of the season, like Shadow Queen/Dark Peach in Paper Mario.
You'd probably be asking too much of the writers. They already failed in that regard right off the bat, with Luna. They had time to rationalize her corruption and it still came out as Swiss cheese. And with that being the case, I also hope that Nightmare Star never sees the light of day in the animated series. I'd much rather see her exasperation toward Twilight Sparkle being addressed.
Never underestimate your opponent. You never know when or how they're going to spring the odd surprise.
The problem is that I'd probably still overestimate them even if I lowered my expectations. Their failings are fundamental and many have been present from the very first premiere onward, repeating and not learning/improving.
I really do think you're expecting too much. The show, first and foremost, exists to sell toys. Deep, complicated plots tend to bore small children. This is primarily because small children are stupid. Personally, I think the writers have done a pretty good job of making a children's show about colorful talking horses into something that adults can enjoy.
On a superficial level, yeah. (And it's sad that a show that concerns itself with meaningful things is itself as shallow as it is.) But it's still no excuse. There's a difference between making something simple enough for a child to understand, and shaving -- if not outright tossing out -- logic within the show's own context. If you look past the filmy facade it doesn't take long for reasonably intelligent adults to see how much stupidity is part and parcel of the show (and, just to be clear, I don't mean the slapstick, gags, cartoon physics and such, which all have their place for different reasons), and not far beyond that where the show might as well be insulting children with how often they take advantage of their ignorance and lack of critical thinking for their own convenience. I don't think that I'm expecting too much when characterization, plot, continuity, world-building and the like rely upon logic, consistency, foundations of the mechanics and all that jazz. I'm talking about basic things, here: they don't need a lot, they only need enough. For the most part, I'm willing to let most non-premiere and finale episodes slide, if it were asked of me, but that's where I draw the line and stop listening to apologists. We should never expect improvement, or any better from anything similar, if we make the excuses for the ones propagating a problem. Just because a show is a front for toys and is -- for all intents and purposes -- a business, that doesn't mean we have to be complacent. Should someone like something enough, I would hope that the quality of that something matched their feelings for it, and for them to demand better if it doesn't. (In the unlikely event that anyone would care enough to hear me blather more on this subject, I'd rather do it elsewhere rather than derail this topic.)