An interesting tydbit found on the blog of Nathaniel M. Campbell, a mediaevalist with a special interest in Hildegard. Here are the opening paragraphs. Please proceed to his interesting site if you want more.
Scholars and admirers of Hildegard of Bingen have for years dreamt that she might one day be declared a Doctor of the Church. Her visionary writings are amongst the most intensely daring and theologically innovative of the twelfth century, while her zeal for the reform of the Church could burst open the doors of cathedral and palace alike. But her bold tendencies, combined with the fact that she has never formally been canonized, have long made that dream seem distant and unattainable.
Not, it would seem, anymore. According to Vatican insiders, preparations are being made for Pope Benedict XVI formally to canonize Hildegard next year and to declare her a Doctor of the Church! In email correspondence, Sr. Phillipa Rath, O.S.B., of the Abbey of St. Hildegard in Eibingen, Germany, confirmed to me that preparations are underway for the declaration in October, 2012. Hildegard would become the thirty-fourth Doctor of the Church,and only the fourth woman, after Sts. Catherine of Siena, Theresa of Avila, and Therese of Lisieux.