Alas, the Wiki is incomplete. It doesn't include, at minimum, "Stay As You Are" from Vauxhall and I or "Laughing Anne" from Southpaw Grammar. The long-circulating (and inferior) demo recording of the former has been all but debunked as a Morrissey track though Simon Goddard did reveal in Mozipedia that the Vauxhall demo tape he heard courtesy of Jonny Bridgwood contained a song with that title. "Laughing Anne" was an instrumental only and has yet to leak publicly. One of Boz or Alain's demos from the period has occasionally circulated with the title associated to it, but it's apparently a different (unknown or unnamed) song.
A person who used to post here regularly for years told me that they had discussed the unreleased tracks from Years of Refusal with Jesse, who confirmed they were left unfinished at the time of Jerry Finn's death.