I think it should come back.. it's been gone forever and I hate going to hub just to see the staff list.
This isn't a confirmed statement but it could have something to do with ''hackers'' or ''cheaters'' not being able to type /staff to avoid being punished. Although it was named a ''bug'' on Infection. It's not a complicated plugin so if there were any bugs it should have been resolved in about 10 minutes max.