As to myself - already had a terrific three-day break in Rome...
Ireland (probably by car) for 3 nights for a family party in June, then nothing else specific planned yet.
And (re @Shropshire Seagull trip round Ireland)...
Visit Cobh while you're down in Cork. You'll only need an hour or two there but its an amazing spot. A tiny little harbour town, from which TWO AND A HALF MILLION people set sail for a new life in the States, to escape the hardship that was...
Not done that as one round trip (not for a holiday anyway) but have visited all of the places listed (bar Blarney), for work or leisure.
I wouldn't go a bundle on Dublin, personally - it kind of feels like any other generic big city, these days. And Limerick is a bit rough round the edges. But...