Microsoft just announced changes to their exam including: AZ-103, AZ-203, AZ-300, AZ-301, AI-100. New versions (AZ-104, AZ-204, AZ-303, AZ-304, AI-101) will be rolled out in March 2020. Old exams will be available for 90 days after new ones will become available.
Also some other updates are expected (to other exams) but they were not announced yet.
What changes should we expect? I don’t think that much will change. Rather it will be expansion of existing questions which reflects the growth of Azure. Maybe some parts will slightly change weights for each part. I don’t think that they will change core questions as solid base of cloud design were not changed.
Original announcement here.