I'd certainly agree that summer routes to Spain and Portugal are at saturation point, possibly over-saturated.
There may be some potential for growth in Italy, which has a quite different clientele from Spain and Portugal. I'm also constantly surprised that nobody has brought back a charter to Crete, seeing how successful it used to be. Possibly Irish Travel Agents could do with slightly less conservatism.
However, I'm broadly in agreement with you. If there is to be growth, it will largely have to be based on new routes focussing on inbound tourism to the Cork/Kerry region, and perhaps and improvement in frequency UK regional routes.