There is a new leak. This time it was a Samsung document that reveals the roadmap for Android Marshmallow updates for Samsung devices, including at what state their approval is at. The Note 5 and the S6 Edge+ will be the first to receive this update with the cutoff for updates sitting around the Galaxy S5 and the Galaxy Alpha.
Maybe the dates listed are quite soon with the Note 5 and S6 Edge+ updates due for rollout in December of this year. The document also details a second phase of updates for Samsung’s Galaxy A and Galaxy E range, however the timetable for this is unclear. There is also a third phase but that seems less likely.