There has been superb security at Boeing and the FAA on the MAX recovery effort.
No leaks of any kind
afaik, neither as to the proposed fixes nor whatever the Plan B alternative if the proposed fix fails to pass muster.
Given the active interest in the outcome expressed by the international regulators and the similar absence of any indications from those sources, it may be speculated that they are equally uninformed.
One possible explanation is that there is deep disagreement on what the required fix should be. Are there any precedents which could illuminate this situation?