While I'd prefer it included everything, I don't think it needs to. What it needs is to be well proof read, and to not be superceded by a new 'starter set' in 6 months. New releases should be more akin to the 'house of' books. Specific to new gangs or whatever else comes out.
If they bring out a sump sea suplement for example, it would only need rules for waterborne vehicles, any new gang recruitment rules, hangers on etc and campaign type. What you categorically don't need is another type of sword better than the last 8 or so (Sump-cutlass anyone?) So any new equipment should be limited to new gangs in the way enforcer or squat boltguns are. And therefore can be excluded from the TP.
If they bring out a sump sea suplement for example, it would only need rules for waterborne vehicles, any new gang recruitment rules, hangers on etc and campaign type. What you categorically don't need is another type of sword better than the last 8 or so (Sump-cutlass anyone?) So any new equipment should be limited to new gangs in the way enforcer or squat boltguns are. And therefore can be excluded from the TP.