Ok, so I'm bored right now, so I'm going to guess how next week episode's going to go or what it should have at least.
First, I think they should start off with a little backstory after Trixie gets humiliated by Twilight. What I mean is show her being sad, angry, or both. I think having Sombra as a voice in her head saying "hey you look sad, what's wrong?". Trixie will be like, "those ponies or Twilight or whoever humiliated me and i want revenge" and Sombra will be like "maybe we can work somethin' out". That would be MUCH better than her randomly finding some stupid necklace and something compelling her to wear it. I swear if they don't say or show Trixie's backstory or how she got the necklace, I am going to call total bullshit. It'd be better if it was in the beginning before the gist of the episode since I think it'd be a much stronger impression than it being in the middle or the end, but whatever.
Ok then the battle and crap commences and Twilight is exiled and blah blah. Trixie is a douche to the others and Twilight can't help because she's exiled. In my opinion, I think it would be better if the other 5 helped put an end to Trixie's reign of terror rather than Twilight by herself. The show's called called MLP: Friendship is Magic, not MLP: Twilight and Friends. I will be very angered if this turns out to be another "lol only twilight can stop this monster" episode, especially since the two parter 3 weeks ago was one of these (3 weeks when this episode airs, mind you). I get that some people may be mad that Twilight "will not get her revenge!!!!", but this isn't a show about getting revenge on others for being assholes.
Lastly, like I stated previously, I will be disappointed if it turns out Trixie was just innocent and she's all like "hey gaiz, wut happened?!1??" or "where am i????" after she is defeated. I think it'd be cool if she was like turned to stone or disintegrated into little particles or something cool like that, since she's probably not innocent at all and I will call total bullshit if she was helpless to Sombra's power and Sombra didn't have to bribe or goad her into ultimate power. I want Trixie to face consequences for her action if she indeed get it, like Sombra taking her soul or life force or whatever away. That may be overdoing for a kid's show though, but I stick with my notion on her turning to stone or particles and whatnot.
Anyways, feel free to comment on this or bash it or whatever.