There is a bit more detail on the new Irish tentative list on this page
on the Irish Times website. It seems that after the consoltation it has been whittled down to five sites.
It seems that the Burren and Cashel have been left out, two of the stronger sites from the 1992 list. Glendalough is a good addition, and Clonmacnoise is a good site, though I wouldn't say either would drastically enliven the list.
I haven't been to the other three sites though I am informed that Durrow is a pretty baffling addition to the list and my searches have turned up nothing particularly remarkable. Inis Cealtra is on Lough Gur from the Hill of Tara list.