According to Manchester Airport website the Germania flights to Heraklion start next Tuesday, 12 May.
Olympic has one Germania plane at Manchester, which presumably covers as many of its flights from Manchester as possible. I do sometimes worry about what happens if the one plane goes technical, but fortunately I have not had any issues.
Looking forward to checking departures and arrivals, as part of the countdown to the holiday. Sad, I know.
Arnaki