Due out later this year, alongside the release of The Battle of the Five Armies, the final film in The Hobbit trilogy, will be The Lonely Mountain. The set centers on Smaug and his occupation of the dwarf mines. As well the dragon the 866-piece set includes Bilbo Baggins, Balin, Dwalin, Ori, and Gloin (via The Hollywood Reporter).
Due next year will be the Wookiee Gunship from Star Wars Rebels. It comes with a trio of Wookies, and the Jedi Kanan Jarrus. (vis MTV).
Also due early next year is 76025 Green Lantern vs Sinestro, the latest addition to the DC Super Heroes range. This set comes with, as the name implies, the Green Lantern, Sinestro, plus a cool white-space-suited Batman. The ship here has lots of transparent green parts, and that little clip thing at the bottom of the image apparently spring launches Batman into flight (via Kotaku).
Announced a few days ago, there's the huge UCS Tumbler set, due out in September. You can see lots of images, and a designer video, in my previous report.
There's also the promise of a new 2015 The Lego Movie set being revealed. Yahoo Movies have posted a small image showing Batman, Angrykitty with a Micro Manager and robot skeleton.
The Lego press release about Comic Con also mentioned the fourth series of Mixels sets will be revealed too.