I've found a couple of things you might find interesting:
GII-9. Hume Society 7:30-10:35 p.m. Place: TBA
Topic: Hume on Skepticism and Moral Distinctions
Chair: Karánn Durland (Austin College)
John Corvino (Wayne State): “Hume on the ‘Reality’ of Moral Distinctions”
Brian Ribeiro (University of Tennessee–Chattanooga): “Hume’s Changing Views on the ‘Durability’ of Skepticism”
II-C. Author Meets Critics: Duncan Pritchard, Epistemic Luck 9:00 a.m.-Noon
Chair: Mylan Engel, Jr. (Northern Illinois University)
Critics: Ernest Sosa (Rutgers University)
Linda Zagzebski (University of Oklahoma)
Jonathan L. Kvanvig (Baylor University)
Author: Duncan Pritchard (University of Stirling)
As you probably know, Brian Ribeiro has written several fine articles on skepticism and Duncan's excellent book discusses, among other things, external world skepticism and Pyrrhonism.
Edit: Brian has just let me know that there has been a time change. So I've modified the information and also added that John Corvino is the other speaker. The info on the APA website is a little inaccurate.