The collect will be:
Deus, qui beátum Ioánnem Henrícum, presbýterum, lumen benígnum tuum sequéntem pacem in Ecclésia tua inveníre contulísti,concéde propítius, ut, eius intercessióne et exémplo, ex umbris et imagínibus in plenitúdinem veritátis tuae perducámur. Per Dominum.
O God, who bestowed on the Priest Blessed John Henry Newman the grace to follow your kindly light and find peace in your Church; graciously grant that, through his intercession and example, we may be led out of shadows and images into the fulness of your truth. Through our Lord Jesus Christ, your Son, who lives and reigns with you in the unity of the Holy Spirit, one God, for ever and ever.