It wouldnt be the first time that I have heard MAN-DME on Easyjets radar, but they seem reluctant to try it.
I believe rights are not an issue anymore (im sure MAN rights were given on the back of bmi being allowed access to Moscow from LHR).
Are the rights in place to operate from LGW? If not, then maybe Easy could try it from MAN with the rights in place, then try and apply for LGW if the market proves worthwhile?
Outside of this, AMM was rumoured, but how likely is it that MAN/LGW-AMM will actually see the light of day, and I wonder what easyjet will do about Lebannon asking for routes to MAN/STN/LTN? MAN has a route subsidy pot, and Lebannon apparantly will help out, so thats got to have taken a bit of the risk factor out, even if they do just try it out whilst the money is in place. They may be pleasantly surprised!
All of these out of the box ideas, just needs some guts to start them!