If the referendum is passed Article 9 of the constitution would read as follows (new material in bold):
Article 9
1. 1° On the coming into operation of this
Constitution any person who was a citizen of
Saorstát Éireann immediately before the coming
into operation of this Constitution shall become
and be an Irish citizen.
2° The future acquisition and loss of Irish
nationality and citizenship shall be determined
in accordance with law.
3° No person may be excluded from Irish
nationality and citizenship by reason of
the sex of such person.
2. 1° Notwithstanding any other provision of this
Constitution, a person born in the island of
Ireland, which includes its islands and its seas,
who does not have, at the time of his or her
birth, at least one parent who is an Irish citizen
or entitled to be an Irish citizen is not entitled
to Irish citizenship or nationality, unless
provided for by law.
2° This section shall not apply to persons born
before the date of the enactment of
this section.
3. Fidelity to the nation and loyalty to the State
are fundamental political duties of all citizens.