The Bicentennial Edtion of Wesley's Works. (Only trure scholarly edition)
This is the only true scholarly edition of Wesley available. It included invaluable footnotes by the greatest Wesley Scholars in the world today, such as Albert Outler's notes and introductions on the sermons and Richard Heitzenrater's notes on the Journals.
This is greatly needed. It would be the only critical edition of Wesley's Works, and the only edition in more than 100 years.