Athens? Seriously ... Crazy! Rome has been done and axed done and axed and ( while Jet2 are having a go and lets hope ) so I just can't see Athens seeing the light of day. It's a long sector.
Equally, plenty more easier wins there for easyJet including Turkish sun spots ( yes bucket and spade but they make money and are sustainable ), a few Italian destinations and west France could do more on a seasonal basis; Nantes for e.g and Venice - amazes me no flights to Venice. Peak season prices ex a Dublin are enormous and so many people ex NI use the services year in year out!!!