Ireland held a "Constitutional Convention" to consider this and a bunch of other changes. They decided to introduce referenda on some of them, including removin

Ireland held a "Constitutional Convention" to consider this and a bunch of other changes. They decided to introduce referenda on some of them, including removing the requirement for blasphemy to be illegal. So far they've held referenda on reducing the age at which a person becomes eligible to be president (result: rejected by a large majority) and on permitting same-sex marriage (result: accepted by a sizeable majority). There is not likely to be a referendum on blasphemy until after the general election in 2016.