Any shift in focus by Ryanair could have upsides for Cork. CSA reappearance may just be one of them.
It would seem that Cork Airport are confident that Ryanair won't expand @ Cork and pursue CSA route to Prague.
An Ideal and sustainable future for Cork may be in attracting other airlines who are willing to pay a realistic fee for using the airport.
Have to hand it to CSA , they are brave coming onto FR turf... This route has been tried by a few, and with CSA coming back in would suggest they see potential in the route based on past performance.