I was thinking that, every couple of weeks or so, the devs could add a couple new weapon skins available for drop. Some could be rare, some could be common, but they wouldn't announce specifically in the update notes what they were. If anything, they could just say "New weapons".
It would also be neat if they changed the availablity of old weapons. Make it so some weeks scimitars can't drop, make it so that raven staves become more rare, etc.
Just to make things go crazy sometimes
