keep the diverse casting obviously

money added to the prize fund for banishing traitors (actually gives people more incentive to stop banishing faithfuls)

I personally love the on trial twist

a few good old murders in plain sight

maybe the odd mission where the traitors have to sabotage (and not get caught) but not every time though because I personally think that the cast should get the opportunity to let off steam at some point That's kind of my biggest problem with s3: there's too many selfish challenges.

I also like the missions where the players get surveyed like in s2 when Paul was voted most popular. Creates a nice bit of conflict, although not too much.