I think 2015 is likely given that Scott is already working on a different film at the moment and 2014 has enough stuff being released that year. 2014 has two Marvel Studio films, Transformers 4, the third Hobbit movie, Dawn of the Planet of the Apes, Ninja Turtles, X-Men: First Class 2, How to Train Your Dragon 2, The Hunger Games: Mockingjay Part 1 and the new Godzilla film from Legendary Pictures.