@Leah The next film due to release on 16th December 2016 is Rogue One, a spin-off or (anthology as they're calling it) set between III and IV, based around a group of rebels attempting to steal the plans for the Death Star Mark I. This will be directed by Garth Edwards, starring Felicity Jones, Mads Mikkelsen, Diego Luna, Ben Mendelsohn, Riz Ahmed and more.
Episode VIII is due for release on 26th May 2017 which will be the continuation of the main saga. This will be directed by Rian Johnson and Johnson will apparently ''make some weird thing'', according to screenwriter Lawrence Kasdan
On 25th May 2018 another anthology film is scheduled to be released, rumoured to be about the exploits of Han Solo before he got involved in all this Jedi malarkey- basically the story of his days as a smuggler. The Lego Movie’s Phil Lord and Chris Miller are directing, with Lawrence and Jon Kasdan writing.
In 2019 Episode IX will be released marking the conclusion of the newest trilogy of Star Wars films. Shame it has to be so long away! Colin Trevorrow (Jurassic World) is directing, with Rian Johnson writing this time.
And finally, in 2020 another anthology film will be released, rumoured to be about the loveable green bounty hunter Boba Fett, giving him a backstory as to why he isn't a very nice person. Nobody knows who is directing this one yet.
It looks to be an exciting few years for Star Wars fans!