As promised, here are some more details about the current situation.
Here are links to flashable boot.img's that fix SuperSU:
Holy wall of text, Batman!
Today I've added the first Note4 (Asia only) models to the list: SM-N910C, SM-N910U, SM-N9106W - http://forum.xda-developers.com/note-4/orig-development/sm-n910-cf-auto-root-t2897428
A whole bunch of devices' CF-Auto-Roots have been updated from older firmware bases to 4.4.x firmware bases. Means these CFAR's work again on the latest bootloaders, primarily.
This update primarily fixes some L-related issues.
This relatively minor update fixes a number of reported crashes and bugs, updates the timelapse module, adds some Android 4.4+ KitKat specific compatibility, and supports Android Wear.
I've just uploaded v3.10 of StickMount to the Play store, bringing compatibility with the Android "L" Preview. That's it, really.