Egyptair bookable from November onwards now, but nothing for the summer.
Ive been told the flights for S14 should be available again from the back end of next week. All flights still show in Egyptairs website timetable right through the summer which is exactly the same as last years late addition.
This happened last year where S14 was loaded first and then W13/14 loaded some time later, and quite late into the season.
Apparently it is something to do with UK-Cairo bilateral's. It doesn't affect LHR-CAI at its current capacity, nor does it affect UK-rest of Egypt, but any UK-CAI routes need extra government rights, however Im not sure why CAI is a special case, for example easyjet has been trying for a while to get LGW-CAI rights, and has come close once or twice but not got them yet.