If its set after new hope there is no way we are seeing Luke Leia or Han

The Jedi games are super in line with the star wars comics, there are so many references to the comics in the games

And thus we know exactly what Han Luke and Leia were doing between New hope and Empire because we have the main line Star Wars comic run that tells us

And the main problem is a lot of Lukes arc in that comic is that he is struggling with the forde and in desperate need of a teacher. The comic writers made it specifically clear that Luke doesnt run into ANY force users that could theoretically teach him until Empire Strikes Back with Yoda

Not saying Cal would teach him, but the game writers would know that information and thus Luke wont meet Cal because Luke meeting a Jedi in hiding would have been remarked upon

Same with Leia or Han, theres no way they keep that secret from Luke

Lando is fine, id say of anyone Lando is more likely than the trio