I think that the posters who say that the media have the story fresh from pprune, I think that they could be right. AerLingus if they are going to appear at LHR it will be a LHR link, maybe that could mean a consolidation of the LHR route at the city but I just cant see they touching Domestic routes outside of LHR.
I certainly dont think that BE would allow BHD to flex its muscle and there are many services (that dont compete with EZY) to BFS and drive a good deal with BFS including ski charters, other charters, EMA, CWL, INV, ABZ, Dundee...plus Jersey... Anyway.
If EI Did move Euro routes to BFS I could see EZY putting extra capacity and ensuring that it is not easy for EI..... It's not in Easyjet's interest to have a strong and growing BHD.