The building owners are saying they're going to reopen it as a music venue after refurb but forcing the Leadmill team out has caused serious ill-will in Sheff, and I expect there'll be organised boycotts if/when it opens its doors again and it can't be called the Leadmill.
Yes, it was a damn good venue, very much in the same vein as Rock City - I recall seeing the Damned there as their alter-egos Naz Nomad and the Nightmares, and Gong. Still kicking myself for not going to see the Tad/Nirvana gig there in 1990. As for lost venues of yesteryear, I still miss the Duchess of York (Leeds) and the Queens Hall (Bradford).