I've been perusing the OUP catalogue, planning which freebees I to get for contributing to an Oxford project. Here are three forthcoming books that I know will be of interest to readers:
the 2nd edition of Kane's Handbook on Free Will (which has a number of new chapters)
There are also two recent books on free will which some of you may be interested in for your courses as well:
If there are other books you think the rest of us should know about, please post them in comments.