Eric "Quint" Vespe of Aint It Cool News reports that during an intimate gathering at the home of Lorraine Warren, a potential plot for The Conjuring 2 was revealed. It was previously believed (and hinted at in the first film) that Amityville would be the basis for the sequel, but that won't be the case if this description is legitimate.

Quint wrote: "The case file they're looking at occurs in the late '70s and centers on two sisters in Enfield, England, who were allegedly possessed. Warren said she personally saw them levitate and even saw one of the sister dematerialize in front of her only to be found 20 minutes later stuffed into an oversized fuse box, contorted in such an unnatural way that they couldn't have replicated it if they tried. She also said that the demon spoke directly to her husband on many occasions. Warren cited this case as one of the most terrifying experiences of her career."

It's unknown if James Wan, who is currently working on Fast & Furious 7, will return to direct. However the film has already earned over $100 million and a sequel is likely to be a top priority for New Line. Vera Farmiga and Patrick Wilson will likely return for the next film.

Read more at http://www.411mania.com/movies/news/293214/[Movies]-Potential-Plot-Of-The-Conjuring-2-Revealed.htm#sboTGhlEuAk6G6EO.99

Conjuring 1 was good, but not great
The conjuring 2 description by that article actually sounds like a good movie as well