There appears to be changes afoot for Saudia in the Winter schedule.
A new flight number SV199/198 has now appeared in our system operating 4 weekly on Mon/Tue/Thu/Sat. However the existing SV123/124 is still showing on Tue/Thu/Sun as well. I can't imagine they are going to 7 services (including two on Tuesdays/Thursdays !!!), so I expect the system is still being updated.
Meanwhile poor old Egyptair still showing their usual 5 weekly services for the Winter from 26 October, but with all flights closed for sale. Getting a bit late now.