I've seen the dialogue on the Google Groups and Github regarding the changes to the Library Structure for Arduino IDE 1.5.X.
However, in the last 60 days there are at least 5 different threads on the Library Structure of the Arduino Development Environment in the Google Groups. I'm not even sure which is worth following. We have the Rev1 spec, recently released Rev2 spec and we know this will ultimately result in the reléase of a Rev3 spec. We're are seeing suggestions that you might even add the new library structures to the old 1.0.X IDE.
Anyway, could you folks place a nice series of Updates/Comments here for folks to read. It sure would be nice to know which direction this is going on? Furthermore...the Library Manager... do we have to wait for Arduino IDE 2.0.X for that? Or will it follow closely behind the R3 reléase of the new (1.5 world) library structures.