I can only state an opinion which has no theological (that I am aware of) basis, but maybe, just maybe, they are moving towards saying that children who have been aborted, or murdered before they were born, may go to heaven if God, being the almighty knows what choice those children would have made if given the chance.
Its a question that a few folks have asked, what happens to the souls all of those poor children who were killed before they even got a chance to accept or reject God?
Did those who were terminated, go to heaven, hell or were they in limbo?
This might be an answer to the question or at least setting up the foundation to answer the question of the fate of those souls who were aborted.
Baptism of desire. God can act in an extraordinary way to receive even the unbaptized. In this case, an infant, who is obviously not of the age of reason, may theoretically desire baptism by virtue of its soul. This, also, is not defined, which is why John Paul II emphasized the need to trust in God's mercy for these souls - that as a mother would not forget her children, God will not forget those whom He formed in the palm of His hand.