An AU ending I would have preferred that could be a fanfic:
I would have preferred the ending to be that only the unicorns at Bridlewood accepted the Mane Five’s message at the end of the movie. And they would save Maretime Bay for one of the later seasons where Sunny would finally convince them there.
As for the magic returning, since the races would still doubt each other, although now that the magic had returned this would produce good and bad. Pegasi might be ready to go to war again for instance unaware of why the magic returned. And the Earth Ponies would be on alert more than ever now that they would have to contend with magic.
At Bidlewood (actuallu I now prefer Zephyr Heights because there’s so mich to do and it has a modern feel that show is going for), this would the Mane Five’s base where they can have slice of life stories like Pipp’s social media and then they would journey out to spread the word of friendship to other communities.
The ending of the movie would still happen but in one the final seasons. If not the season finale. And it would also involve the other races like dragons or hippogriffs.
I just like the whole fugitive feel to it. I would like to see Sunny have to sometimes travel from place to place and be almost nomadic at times because a community might turn against them.