Ever since Mongoose announced that the new Dredd would be using Traveller, I've been excited to see how citizens might be done.
For me, given the nature of crazes and lack of regular employment in MC1 (and the terrible dangers of the city), a whole book on rolling up citizens would be a treat.
Following the standard Traveller model, you'd have cits attempting to enter different 'careers' (eg. Fatty, gang member, Wrecker, alien pet enthusiast, Citi-Def member, etc...) with 'enlistment' rolls, with separate event/mishap tables for each possible career. Lots of room for follow-up articles in S&P to cover those minority interests, too.
You could have 'Big Meg Citizen' as the equivalent of the automatic qualification of 'Drifter', with Event and Mishap tables for them being based on the particular time period of that term.
eg. you work out that your character's third term takes place from 2100-2104.. she's failed to 'enlist' as a SkySurfer, so is stuck as a Big Meg Citizen for that term. She looks up the Time Period Mishap and Event tables for that period (you could even have different survival rolls for different periods...), fails a survival roll, and rolls a Mishap like "Your block is destroyed in the Apocalypse War, but you manage to survive in a Displaced Persons Camp until your next term. Lose 2 Social Status, but gain +1 level to Streetwise".