Pretty soon every country on the planet except maybe the USA will prohibit this plane from flying in their airspace until the causes of these 2 crashes are determined and resolved. The several hundred planes now in service won’t be earning money and the thousands of booked and expected orders could be shaken.
Way too early to tell but I have to wonder if Boeing wiggling past the need to recertify a plane with so much changed from previous 737 iterations could be part of the problem.