So recently one of the new Eclipse cast members, Boo Boo Stewart, had a interview in which he stated that after New Moon, "There should be 'Eclipse,' 'Breaking Dawn' and one more, maybe."'
Oh? One more?
Access Hollywood is assuming this to mean that Summit Entertainment is going to pull a 'Harry Potter and the Deathly Hallows' on us with Breaking Dawn, meaning they would split it into two films to fit everything from the book onto film.*
It could also mean that Stephenie Meyer is writing some other Twilight project. Perhaps she's going to pick up Midnight Sun again?
She has given no indication of doing so on her website, but there is always time for her to change her mind. Stewart did use the elusive "maybe," after all.
It could also mean that filmmakers are going to go off and do something else with or without Stephenie having written anything. Who knows, maybe the story of Renesmee?