Evil Wizard Petting Zoo wrote: maybe at one time it was a monarchy like every country in the world was back in the day and the hbp is coming back to take over the ministry because it is "rightly his".
That would be cool! Kick Fudge out of office, man! Honestly, I like the idea, but I think we had enough of politics in OotP.
However, the title of ministry may suggest a democracy, but the wizard society lacks every principle of democracy there is. The minister of magic is not even elected. It's a kind of aristocracy, I think. Maybe we'll really get to see a revolution...and maybe the HBP fits somewhere in there.