From talking to a member of staff in the canteen earlier this week, they said that the space was to be used for retail for passengers and there were no plans to provide an alernative acility.
I am not sure, but I don;t think MAplc have to provide anything for the staff at MAN. I agree it is a useful facility, but donlt hold your berath for a replacement. And firthermore, the staff at T2 have never had a staff canteen, s mnaybe the airport canlt be bothered to make room for one at T2 so balancing things up by scrapping the one at T1!