Mlinnie, I don't think we will see Dublin Inverness anytime soon. AerArann did it before during boom time in Ireland and it got axed. Though FR were on ABZ daily. I think EIR will leave capacity to that area of Scotland to a daily flight and enjoy good yield rather than dilute the fare levels with extra capacity. I think Dundee would be good little bolt on to EDI.
NQY would work well as seasonal route say x3 weekly.imho.
I think EIR's next steps will be looking at strong population areas of UK that could feed US flights ex, DUB. Eg NCL, EMA LPL. Bristol has been a good test, FR cut flights to 2daily as did EIR, which shows EIR can carve a niche for itself in competitive markets, while benefiting from EI brand.