DISCLAIMER: I am not Catholic, nor have I ever been one. I do not attend their church, know their prayers or understand the heirarchical nature of their organization. They would likely not consider me a 'real' Christian, but I don't mind. Some I have known have proven to be worthy friends and allies in causes I care about.
But the RCC can't become liberal or progressive in the social sense, despite good policies and actions. Regarding abortion, their position will not change, just as their position on the death penalty, euthanasia and extended medical care for prolonging life when a person is terminal.
The positions expressed are that the timing of all of those events are in God's hands and man should not interfere with that process. They do not approve of the termination of a disabled child or euthanasia to end the suffering of terminally ill persons. They do not want to see the disabled at birth starved to death, in order to spare the cost of their care.
There may be exceptions to all of this, as I only know what I read in the news of several kinds and those I know who have advocated in defense of care for the vulnerable.
Women dying from the issues in a pregnancy is natural and not an excuse for terminating the life of the child, or so it's been claimed. There may be variations on this, but I think that's the gist of their philosophy.
That all that can be done to save a life that is not terminal, save abortion, is okay. This has resulted in some evil being done.
IIRC, the last Pope to die was allowed to pass with no heroic measures to prevent his death, so they kept firm.
In the past, they protested the death penalty, nuclear weapons, the SOA and the wars consistently.
Nor will their positions on emigrants, education or health care change, but they will continue to push for more privatization of social services to bring them the needed funds for what they consider their mission, AFAIK.
Here is a link on the surprising positions of the Catholic church in Saltillo, Mexico regarding gays, lesbians and legalizing abortion. The Pope said regarding homosexuals, he has no right to judge them:
https://northernbarbarians.wordpress.com/2011/04/01/mexican-bishop-tells-gays-lesbians-the-church-is-your-home/
Good night.