The G5 is now at its own pace.
Sunny is on her way to alicornhood, Zipp wants to explore her interests as an investigator / scientist, Hitch has become the stepfather of a dragon with a renewed interest in wildlife (he was a scout), Pipp as a drama queen in Rarity´s spirit lives out her desires, Izzy will be Pinkie, not yet Pinkie - she will be for herself. Sprout will probably cause trouble, but he does not get it because he will stumble in his hooves every time. He has become G5`s answer to Trixie. Secondary roles such as Queen Haven, Posey and Windy have begun to have an impact on the actions.
But the past has now returned, and it will come into play as Sunny and Zipp in MYM have revealed that they do not like coercion, as if ponies have to like it because they are forced, so they need answers to solve the problem of emotional instability in the pony magi. The revelation of Discord and the discovery of Canterlot will shock them, but also spur them to find out what happened. And the mysterious alicorn who may be the corrupt Flurry or a descendant of Sombra, lurks in the background, she is not after the Unity Crystals - she is after the pony magic.
The Mane 5 must protect the pony magic from her and possibly stop her claim to be the pony’s ruler as she can inform the ponies who are definitely suffering from memory loss, about the traditions of the ancient Equestria. Then Sunny must step forward and challenge the mysterious alicorn, she may have kept the information about the alicorn’s place as princesses and rulers secret from her friends.
And now that it seems that the hints from the movie have in fact mapped the G5 for the future, it means that much greater dangers than Sprout, the emotional instability of the pony magic and the mysterious alicorn are in store. We do not know how non-ponies will receive the information about the return of the pony magic, as MYM has created a hypothesis that they may have fled for fear of the ponies’ uncontrolled magic. And Grogar`s bell is a strong indication that the end boss of the G5 will be the boss villain of the entire MLP.
Also, MYM gives a new twist in future G5 episodes; cultural collision between the ponies. Moss Ice? The unicorns, the pegasi and the earth ponies come from different cultures around food, customs and economics that we saw with Izzy`s recycling of discarded things and how sparse the unicorns can be.