A post on Starwars.com has revealed a few important details about Episode VII's plot and release date. The article states that Episode VII will take place about 30 years after the Episode VI: Return of the Jedi and will feature several existing (though as of yet unnamed) characters along with "a trio of new young leads.". Shooting is to begin in May. A release date has been set for December 18, 2015.
Update: It has now also been confirmed that Star Wars: Episode VII will be heading to super-sized IMAX screens, despite earlier reservations about the format by director JJ Abrams.