The biggest fact is that the FAA have not been given all the facts during the certification of the MAX.
These "facts" are slowly coming to light and not from Boeing in any timely manner.
I have no doubt there are more facts yet to see the light and that is not restricted to MCAS, thing such as simulators and trim wheel forces and other items as mentioned in the media and places such as Pprune will be examined and researched by the world regulators that have been assembled.
December/January seems optimistic when considering the level of trust now given to Boeing under it's current leadership.