Naturally, a revival in toto of the "Jansenism" of Port Royale is neither possible nor desirable. Historic Jansenists like Abbe Gregoire would have conceded that much. But Vatican II does, almost in spite of itself, give the space to embark on a genuine Augustinian ressourcement and rethinking of some of the presuppositions which lead us down this road to begin with and have proven either false or burdensome - together with attempts at real moral and sacramental reform.
History is a fickle mistress, and we live in uncertain and rapidly changing times. Perhaps - perhaps - that old spirit which shone over Port Royale, Cluny, Hippo and the road to Damascus has some light and surprises to give still if we would give it a chance to shine a little.