I thought that Friendship Games would be the final EQG film and thought that Sunset would return to Equestria at the end of it. Here's how I thought it would go.



After their defeat, the Dazzlings fled to Crystal Prep where no one knew who they were. The group was splintered but Adagio met with the principal. Principal Cinch was the only one aware of the Dazzlings, having met them in their long lifespan. The Dazzlings are sent to the Friendship games along with the human Twilight and two other students(lets face it you couldn't remember most of their names anyway). The Dazzlings pick up to how Twilight can steal magic and hatch a plan to manipulate her to get their own magic back. they do well in the Friendship games due to centuries of experience in events such as archery. After Twilight transforms and is defeated, the portals and destruction to the world remain. With the magic returned to the portal, Princess Twilight comes through and tells everyone that she's been unable to reach them until now because of the interference, briefly meeting her human self. She tells them that in order to fix the dimensional interference that all the Equestrians must go back to their own universe. Aria and Sonata restrain Adagio(Sonata having befriended Pinkie, and Aria being fed up with her leadership) and bring her through the portal. Everyone is surprised when Flash Sentry steps up and reveals himself as an Equestrian.



Flash and Sunset were old friends until Sunset became selfish after becoming Celestia's student. when she fled into the portal, Celestia had Flash go after him. Flash went through and followed Sunset. Sunset was onto him and knew that he was reporting her to Celestia. Despite this a relationship developed. Sunset told Flash to report to Celestia she was planning on returning when the portal opened. Flash did so and Celestia arranged a Princess Summit for her to meet Princess Twilight and Luna. When Sunset stole Twilight's crown, Celestia sent Flash back to make sure she succeeds. When Celestia sensed the portal being reopened. Flash went through again, avoiding meeting his other self.



The last ones to go through the portal are Sunset and Twilight, who are seen walking into a bright light holding hands, end of Legend of Korra style.



The next season will begin with Twilight introducing her friends(who she has already told about her reformation) to Sunset. Introducing her as a former student of Celestia(for those who didn't see the films) I personally would like to first see Sunset be forgiven by Celestia for abandoning her teachings. Celeste assigns Sunset to be Twilight's apprentice. We are also reintroduced to Sonata(now living in Ponyville, possibly with derpy or Pinkie), Aria(who is actually shown to be a competent fighter and is now a member of the royal guard in the Crystal Empire as a form of punishment) and Adagio(who is either imprisoned in Canterlot or trying to be reformed as well(it is here where non movie viewers will hear about how the Dazzlings used to enslave pony with their music but have since been depowered and split up).