Erhan is the one behind most of the text reviews.
There's a separate team of (paid) freelance writers who write the articles and news updates, but if there is no news then how can they write about stuff?
As for the videos, I think Omer is running out of MMOs to do First Looks of, which you can see from the large amount of League of Legends videos that have been posted lately.
But as for MMOHut, don't worry. It won't die that easily