There will always be many rumours with U2, I think it is more the amount of aircraft they can get into MAN.
It is so under served by an large LCC on a serious scale its like a boy in a sweet shop.
People say Ryanair are powerful but when you think that U2 are major players in some of Europe's largest airports, including being the largest at both LGW and MXP, it really is a credit to them.
When MOL pulled his routes out of MAN he basically said to U2 - the airport is yours. Yes LPL is key to the network of U2 and they have made huge sums from the airfield but MAN has so much potential that is currently untapped, I just hope they can see this and take advantage!
Berlin, Madrid, Warsaw and Krakow would be nice additions to the network.