Everyone is forgetting that we still have a missing story from Scarlet and Violet. Here's how it will connect to Legends Z - Alpha

+ See attached picture for background story of Paldea.
+ Legends will have Smeargle getting a Mega, changing from an artist to a scribe. Basing it's change off of the Chansons de Geste.
+ Legends will have Meloetta getting a Mega. Basing itself off of the Songs of the Troubadours.
+ The new Pokemon from Paldea will make its way to Lumiose City after following a Enchanted song that finally soothes the pokemon and seeing writings/ scrolls that it recognizes. The song comes from Mega Meloetta and once it's heard will cause the pokemon to search for the song, randomly running around the city as part of a random encounter.(Similar to the legendary dogs).
+ Only way to stop the pokemon is to get a flute that plays a song(From Meloetta) and get a paper similar to a scroll(From Smeargle). This brings the pokemon out into the open for a battle.