LG G6 to pack a removable battery
According to The Korea Herald, LG is sticking to removable batteries in order to avoid possible issues related to "safety and yield." The safety bit likely has something to do with Samsung's recent Galaxy Note 7 fiasco: due to defective non-removable batteries, Samsung had to recall the Note 7 twice, ultimately discontinuing it after only a few months of production. Of course, a removable battery could still have issues, but it's easier (and way less expensive) to replace a battery instead of replacing/recalling a phone entirely.
The Korea Herald further reiterates a couple of previous rumors which had it that the G6 would feature an iris scanner that doubles as a front-facing camera, plus LG Pay (LG's own mobile payment system that will presumably be announced next year).
The LG G6 might also bring "new functions" that no other LG phone had before, though it's not clear what these functions are all about.
The commercial insuccess of the G5 left a dent in the profits of LG's Mobile Communications branch, so LG is likely hoping that the G6 can turn its fortunes around. Most probably, the G6 will be officially presented in the first quarter of next year, possibly at MWC 2017 (February 27 - March 2).
source: The Korea Herald