Solo - A Star Wars Story is which was released in 2018 and is directed by Phil Lord / Christopher Miller.
This will be the second anthology movie that is set in the star Wars franchise. The first was Star Wars - Rogue One which came out in 2016 and was every inch as successful as the main episodic films. This will star Alden Ehrenreich as the galaxy's favourite scoundrel Han Solo. Also appearing will be Donald Glover as Han's buddy, Lando Calrissian. The film will probably tell of how Han Solo met Chewbacca and won the Millenium Falcon from Lando. It'll probably not feature the Battle of Taanab which got a mention in Star Wars VI - Return of the Jedi and led Lando Calrissian to becoming a general. Donald Glover is a singer and an actor, who most famous for his role in Atalanta.
There's no Princess Leia, there is however a love interest in the form of Emilia Clarke and an appearance by Woody Harrelson who is believed to be some kind of mentor for the young Han Solo. Emilia Clarke is famous for her role as Daenerys Targaryen in the epic television series of Game of Thrones and also appearing as a young Sarah Connor in the rebooted Terminator Genesys movie.