Not forgetting that bmibaby offer Cork as well with no hint of Ryanair launching a route to MAN - all there is is the EI service.
As for futher MAN expansion, it might be a case of wait and see what easyJet decide to do. If nothing happens on the orange front (quite likely) then perhaps some odd routes might be started ("odd" as in Riga,Tallinn and Bergen, all perhaps 2 weekly. Perhaps Jerez might be easier for them to make a profit on given a smaller aircraft than Monarch; Madrid is also a reasonable option)