The LG G6 is now official: 5.7" display with an aspect ratio of 2:1, Snapdragon 821, 4 GB of RAM, and an interesting dual-camera setup. Noticeably absent is support for LG's Friends.
http://www.notebookcheck.net/LG-officially-unveils-G6-Ultrawide-on-the-go.199296.0.html