We have English translations of a great deal of Patristic literature. One of the most conspicuous absences, however, has been the five books that Eusebius of Caesarea wrote against Marcellus of Ancyra after the Council of Nicaea in 325 AD. These are the Contra Marcellum and the Ecclesiastical Theology.
Today I heard from Dr Kelley E. Spoerl of Saint Anselm College, who writes:
I am happy to report that my collaborator, Dr. Markus Vinzent of King’s College, London, and I have signed a contract to have the translation published with the Fathers of the Church series from Catholic University of America Press sometime in 2015 or 2016. The manuscript is now with two expert scholars for review and we expect to make the final revisions and submit before the end of 2014.
Already I have heard from another correspondent, interested in seeing the manuscript. But of course the publishers will try to prevent any circulation of that, and quite understandably.
It’s good news. Admittedly the number of people who will be able to access the translation is not nearly what it would be; but at least the thing now exists. My original correspondence with Dr Spoerl was in 2008 (!) so it has been a long time coming. Very welcome all the same.
I ought to highlight that a small part of the Ecclesiastical Theology (III 4-6) is available in English in the dissertation of John Mackett, Eusebius of Caesarea’s Theology of the Holy Spirit. Milwaukee, WI : Marquette University, 1990, p.225-244. This I have seen, and it is mind-boggling – pure theology!
In addition an Italian translation exists: Franzo Migliore, Eusebio di Cesarea: teologia ecclesiastica, Città Nuova, 1998. Google books preview here.
UPDATE (2020): The complete translation of these two works by Kathy E. Spoerl and Markus Vinzent appeared in 2017: Eusebius of Caesarea: Against Marcellus and On Ecclesiastical Theology, Fathers of the Church 135, Catholic University of America (2017).