From the article found by Bergerie1:
"The JATR’s focus on the certification of the aircraft is separate from the ongoing efforts to safely return the aircraft to flight," the FAA says.
The panel's recommendations could affect both the future of how the FAA conducts safety certification and could influence how soon regulators from other nations return the aircraft to service. The FAA's certification of the Max does not require the panel to first finish its review, and Boeing still aims for the agency to clear the aircraft to fly in the fourth quarter.
I'm not sure the JATR's input
can be separated from the ongoing efforts to return the MAX to flight. If the panel uncovers issues which bear directly on the plane's safety, they would need to be addressed before the return to service.
Why else might the panel's recommendations influence how soon regulators from other nations return the aircraft to service?