Alvin Plantinga (Notre Dame), the greatest living Christian philosopher of religion, is retiring. Despite my disagreements with his views, he is one of my favorite philosophers of religion. His work is of the highest caliber, and his style is a model of clarity and rigor. I have learned more from his work than I can say.
On a happier note, a conference is scheduled in celebration of his retirement. Details about the conference can be found here.
P.S., Plantinga's latest reply to criticisms of his evolutionary argument against naturalism ("Content and Natural Selection", Philosophy and Phenomenological Research (forthcoming)) is now available at his department website. Here is the link.