I know that the Art of Prophesying and Commentary on Galatians are available. Is any other material by William Perkins in print or likely to be in print soon?
Reuben -- See this thread for an update on the Reformation Heritage Books edition of his Works as well as other available works, including his commentary on Galatians. And don't forget to check out the Perkins page at A Puritans Mind. Meet the Puritans by Joel Beeke and Randall Pederson lists some additional Perkins works that have been published in the last 40 years or so.