To say what, exactly?
The magisterium will not fold to gay marriage nor will it fold to abortion. If they attempt to force the RC church to marry gays, the church just stops performing civil marriages. You want to be married in the Church, then do the civil part after the church part.
Abortion will never be sanctioned by the RC church. I can see hospitals being shut down before they will perform abortions.
They won't...they've been around for 2,015 years...weren't bothered by the Romans, won't be bothered now.