ROME  In making it easier for traditionalist Anglicans to become Catholic, Pope Benedict XVI once again revealed the character of his papacy: to reach out to the most fervent of like-minded believers, even if they are not Catholic. Yet some observers wonder whether his move could paradoxically liberalize the church  or at least wedge it open  on a crucial issue: celibacy.

In a momentous move on Tuesday, the Vatican said it would help Anglicans uncomfortable with female priests and openly gay bishops join a new Anglican rite within the Catholic Church.

The invitation also extends to married Anglican clergy. And so some have begun to wonder, even if the 82-year-old Benedict himself would never allow it, would more people in the Roman Catholic Church begin to entertain the possibility of married Catholic priests?

“If you get used to the idea of your priests being married, then that changes the perception of the Catholic priesthood necessarily,” said Austen Ivereigh, a Catholic commentator in London and a former adviser to Cardinal Cormac Murphy-O’Connor of Westminster.