I think the problem for Easyjet is that Germany has strong local upmarket LCCs (Germanwings, TUIFly, airberlin), quite in contrast to France and Italy and - to some extent - Spain. Whereas Ryanair can stll find its niche below those, much more difficult for Easyjet. They were quick enough to get a decent base at Berlin (which is also a somewhat attractive inbound market), but anywhere else I see little potential at this point until one of ther established German LCCs goes bust. The one exception may be HAM.