Cardinal Ratzinger, who proposed in 1972 that there should be some possibility in certain cases for divorced and remarried couples to receive the Eucharist, seems to regard the teaching of the Church (see the last post–The Church on Reception of Communion by Divorced and Remarried Catholics), and in particular Familiaris Consortio, as having definitively settled the matter.
In a letter to the editor of The Tablet, responding to Theodore Davy, he wrote that his suggestion in 1972 was just that, a suggestion, that the matter must be subject to the judgment of the magisterum, which "spoke decisively on this question in the person of the present Holy Father in Familiaris Consortio."
Again, in an interview with Peter Seewald, published as Salz der Erde (1996), he was asked "Is discussion of this question [of reception of Communion by the divorced and remarried] still open, or is it already decided and settled once and for all?" He responded:
As a matter of principle it is decided, but of course factual questions, individual questions, are always possible. For example, perhaps in the future there could also be an extrajudicial determination that the first marriage was invalid. This could perhaps also be ascertained locally by experienced pastors. Such juridical developments, which can make things less complicated, are conceivable. But the principle that marriage is indissoluble and that someone who has left the valid marriage of his life, the sacrament, and entered into another marriage cannot communicate, does in fact as such hold definitively.