What have the FAA discovered ?
Perhaps they have recognised the obvious, a hole in the ground. A very compact site, disintegrated structure, indicating a high energy impact.
The relatively low altitude of problem onset, sudden altitude loss, nose down, high speed, apparently without crew intervention - perhaps an unrecognised problem, misleading instrument readings, unable to take meaningful action, unable to communicate, high control forces, ineffective manual trim intervention.
Together with new satalite information.
Not to forget that humans will see patterns; any, and every-where.
Whatever; but an understanding of the FAA’s views and thoughts, could be as interesting as the accident itself