I brought this up a few years ago, but I think the ability to auction items off, where the whole mud can see would liven things up a bit and make accessing gear a little more realistic. Maybe this could be a Syndicate only ability?
Also Tweaks would make things much more interesting. Maybe 1 in a 100 items would tweak or be different from the norm. This could be a good tweak like an item that is normally +3 damage could be +4 or up to +9, or it could be a bad tweak like -7 damage.
Just a couple ideas.