It is definitely a movie and it is definitely coming out
On December 15th, 2017, in fact.
The main players are back
Daisy Ridley (Rey), John Boyega (Finn), Oscar Isaac (Poe), Mark Hamill (Luke Skywalker), Carrie Fisher (Leia Organa), Adam Driver (Kylo Ren), Domhnall Gleeson (General Hux), Anthony Daniels (C-3PO), and Andy Serkis (Supreme Leader Snoke) are all back. Gwendoline Christie will also return as Captain Phasma, clearing up whether our heroes smushed the chrome Stormtrooper in the trash compactor during the events of Star Wars: The Force Awakens.