Tolkien's Literary Executor

[Lalwendë]

Ever wondered what was in Tolkien's will about his work? This is from another member of the Tolkien Society:

’Upon Trust to allow my son Christopher full access to the same* in order that he may act as my Literary Executor with full power to publish edit alter rewrite or complete any work of mine which may be unpublished at my death or to destroy the whole or any part or parts of any such unpublished works as he in his absolute discretion may think fit and subject thereto’

*unpublished works

So Christopher has full powers over all his father's unpublished works. I'd happen to trust him not to do terrible rewrites or edits, but it makes you wonder what else is unpublished, and will it always remain that way?