Just going back to the CSA news/rumour. While the Aer Lingus flights to Prague will have had an impact, they will have had very little time so far to assess the impact on their yields. I suspect that the route has been fairly marginal and that EI's decision to fly to Prague made the decision for them.
When the route started, it was Cork's only route to Central/Eatern Europe and as well as people going to Prague, it was popular with connecting passengers going to Poland or elsewhere. With the new flights to Warsaw, Budapest and Katowice (with more to some), there will have been a reduction in demand for the service and it may have been this general trend that is encouraging them to drop it.
If there's a positive side, it should mean that a lot of passengers for destinations not served directly will use Budapest to connect, which could shore that route up a bit. That said, CSA's presence will have encouraged Malev to launch flights and I hope that their departure doesn't cause a rethink.