Johnny Rogan seems to put them in what he thinks is chronological order. Wilde About Morrissey is the 4th on his list. It comes after Merry Xmas, which is a 1984 concert - based on the title, maybe it would be reasonable to guess at a late 1984 release - and before Music Is Magnificent, which has cover art based on Meat Is Murder. So 1985 would be my guess.
Of course, it would be very easy for Rogan to be mistaken about the order. How can any except the bootlegger be sure about a release date?