The Museum of Contemporary Art appears to be headed toward a potentially unpleasant speed bump on the road to recovery from several years of well-documented troubles: Its upcoming exhibition program is a mystery.

A big, challenging retrospective of mixed-media works by the late, hugely influential Los Angeles artist Mike Kelley closes Monday at MOCA's warehouse space in Little Tokyo. Then the building will be temporarily shuttered for some unspecified roof repairs.

A reopening date has not yet been set. But when it is, eager museum visitors can look forward to seeing — well, what they'll be seeing is hard to say. At the Geffen Contemporary, MOCA's future exhibition schedule is blank.