There is no answer to that as there is no specific answer as to how nature evolves. From the onset this has been an organic movement that same as nature grows by adapting and changing and you are not going to pidgenhole it to fit any particular view or time limit or any of the above.
The physical people manifestation is just the consciousness raising aspect and if that is the only goal it accomplishes, then just see it for what it is.
It is a total waste of time an in particular when it comes to helping to change things to naysay it or try to armchair quaterback it to fit any specific view. Do your part in whatever way suits your ideals and supports these folks in any way you can for we need to be working together and contributing within our individual capacities and personal ideals instead of trying to second guess any yet to be defined parameters...............it is and will continue to be "a work in progress".............