If it helps, FR announced an additional route (Rhodes) from EDI about two weeks ago. They then announced the final S23 schedule last week, and I think that they are working their way round their bases in turn - Glasgow in a day or two, for example. Gets maximum publicity, I guess
The extra EDI frame is providing additional rotations to their existing routes. So, unless they've announced new routes from Manchester, there probably won't be any, and the extra frame will be used to increase frequencies.