Up until recently, the venue of the Irish Open was listed on the Euro PGAT website as "TBD" (To Be Determined). The Irish Open has had a checkered past in terms of reliability, i.e. many gap years and even decades where it was not played due to lack of sponsorship. An emerald "Open" championship it ain't.
Great to see Baltray getting the nod, however. I've never played there but everybody I know and whom I respect who has sings its praises.