Panel 1:
Twilight and Heaven in the castle, never expected to have a visit, from Sunset again, but not only her but Rainbow Dash even Sci-Twi and the other Heaven too!
Finally the two hybrid sisters are reunited. And with their friends are ready to have a great memory together!

Panel 2:
After having a good time and knowing at last about time the storm king power threat, Princess Twilight, and both Heavens make a plan to secure everyone in case of the worst scenario.
The plan, "Shadow Exodus", make that once the Rainbooms make everyone in the boat is safe and in case the boat is lost, they have to bring them here to make sure they return to land in 3 phases.
1. Heaven (E.G.) make sure the portal is safe, by take down that giant plant when the Rainbooms help everyone in the boat.
2. When the portal is secure, the Rainbooms and the rest will cross the portal, when the Crimson Legion call by Heaven (MLP) bring them a safe escort through the town.
3. And then, the Legion bring them to the castle for they cross the portal to Canterlot High and return safe to land!!
They have their mission. Let's rock and roll!!