Apple to Launch New Mac Mini at Next Week's Media Event?
These new Mac minis are said to begin shipping immediately after announcement. Apple last redesigned the Mac mini with a unibody aluminum enclosure in 2010, and last updated the computer with faster processors last summer. These current Mac minis are on last-generation chipsets and lack USB 3.0, so we should be seeing those components updated in these new models.
The Mac Mini is overdue for an update; the last refresh occurred in July 2011, some 450 days ago.