S.T. Joshi’s Blog has updated, and the new post makes me aware of a new two volume Czech translation I hadn’t heard about…

I have received a most distinctive item—nothing less than a Czech translation of my edition of The Annotated Revisions and Collaborations of H.P. Lovecraft.

He also gives titles of three forthcoming Letters volumes, presumably set for 2021-22…

Letters to Hyman Bradofsky and Others; Letters to Woodburn Harris and Others; Letters to Richard F. Searight and E. Hoffmann Price.