Samsung's latest Android 6.0 Marshmallow update schedule leaks: Note 5 in December, S6 in January, S4 is a no-go

We've just been tipped Samsung's latest Android 6.0 Marshmallow update roadmap, and there are quite a few changes from the last version that leaked out.
First off, the Note 5's update is imminent, as you can see in the table, which is corroborated by the system dump and Marshmallow-ed TouchWiz that are already making the rounds here and there. The last edition of the roadmap listed Galaxy S6 edge+ for update in December, in sync with the Note 5's schedule, but this has now been moved to January.
Our latest list is fleshed out with many more Samsung handsets and tablets now, too, but, unfortunately, the oldie Note 3 and Galaxy S4 are a no-go. Almost all of the A, E and J-series (save for the Galaxy J1), however, are now in the queue, scheduled for the next Marshmallow rollout phase by Samsung. Of course, as with all internal projects, the schedule will be in flux and phones can be added later, or updates pulled forward, but it seems that by mid-spring most Samsung gear should be already on Marshmallow.
Thanks for the tip!