Why would new owners improve regional services?

Wouldn't they just shut them down to benefit the bigger businesses they own in the city? 

Answer

In Queensland where the Seven Network operates Seven News outside of Brisbane, it has not shut down services; it has retained them because it has the scale of an entire national television network and big operations in Brisbane, Sydney and Melbourne to help offset the costs of its regional operations. In northern NSW where Nine owns NBN it has also retained a strong regional news operation based in Newcastle, because it also has the scale to support such an operation. 

The fact is that if it is economically viable to sustain strong regional news services that is what will happen.