Some “leak” from the new movie, probably fake
 
“I think the biggest thing is the subplot of the rest of the Elements going through the portal to find Twilight and Spike, who are sucked into the portal thanks to the other Twilight’s experiments on it.
 
She shrinks them down to study them and to hide the fact that she did perform experiments on the portal in the first place.
 
She’s the lesser one of the two villains in this movie as she wants to essentially merge both worlds together in hopes that both ponies and humans can coexist. Both Twilight’s actually want this to happen, but Equestria!Twilight wants to do it cautiously as she fears the balance of both worlds will be broken.
 
Midnight Sparkle is essentially both Twilights ending up fused together and being driven to merge both worlds together in spite of the danger it can provide.”