Labour have not specified what will replace the Eighth Amendment

The Eighth Amendment provides that the State acknowledges the right to life of the unborn and, with due regard to the equal right to life of the mother, guarantees, in its laws, to respect, and, as far as practicable, by its laws, to defend and vindicate that right. The people supported this amendment in the September, 1983 referendum by a margin of 66% to 34%.
There is not a scintilla of evidence that a majority of the electorate would support a change in this article, without understanding, in detail, what rights would be defended and vindicated in an alternative amendment. If there was plausible evidence that a proposal to change the Eighth Amendment would command the support of a majority, all political parties, with a realistic chance of participating in the next government, would be promising to hold a referendum and providing a credible context for doing so.