Well it will be interesting to see what sort of papal bulls he issues in his tenure. If Catholics believe the Pope is infallible in his official proclamations, suppose he bans the Latin Tridentine Mass? I've been reading on Barnhardt's page where she brings up the hostility that has been directed at the old Latin mass by the Church, and in one post she suggests the proper response to papal hostility to the Latin mass would be to align oneself with the Eastern Catholics who maintain communion with Rome, because supposedly the Pope has less direct influence over them. I don't know, that seems to me to be within spitting distance of doubting papal infallibility.
That's where I find her missives against Protestants to be irritating, because she acts as if Luther began the "protest" based merely on his selfish desires and not because questions such as the above hadn't been smoldering in people's minds for centuries already.