Atlanta star Donald Glover being chosen to play Lando Calrissian in the untitled Han Solo movie is a perfect bit of casting, and no sooner had the studio made their choice than a very believable rumour surfaced about what we should expect from at least part of the plot. According to The Hollywood Reporter's Borys Kit, two sources have told him that the highly anticipated release will reveal how Lando ended up losing the Millennium Falcon to Han during a game of "Corellian Spike" sabacc.
Honestly, this makes perfect sense, especially as it's a moment Star Wars fans have been wondering about ever since it was mentioned in The Empire Strikes Back. The story has no doubt been told in various formats over the years in the Expanded Universe, but it was the in canon Star Wars: The Force Awakens: The Visual Dictionary which made it clear that Lando lost his beloved ship "fair and square" to Han in the game mentioned above. This is unlikely to be the main driving force of the story though.
We'll have to wait and see anyway, but the Han Solo movie will be released on May 25th, 2018.