Better treatment of inferior creatures.
Magic to be acknowledged as a major force of the universes. For it not to be treated with contempt or to be abused.
Evil witches and wizards to take themselves off to some remote planet somewhere and fight amongst themselves, leaving everyone else to live in peace here.
Humans to get rid of their extremists on any side and put them on a remote island to fight amongst themselves.
Evil magic and associated items to be dumped in the nearest most convenient volcano.
Magical beings reaching their full potential (though obviously this does not apply to those of an evil disposition or sprites given they’ve reached their full potential for trouble already).
More humility on the part of humanity - admitting you’ve mucked up your planet would be a welcome start.
Other worlds stopping trying to attack the fairy realm in an attempt to grab our world’s powers, the ones that affect our entire atmosphere.