Defence Connect has an article on what the coalition means for defence as well as a wish list for future discussion including additional Hobart AWDs.
Defence Connect
"Defence Connect has put together a brief wish list and is encouraging conversation about capabilities for the Coalition’s defence ministers to consider establishing in this next term of government.
1. Acquire an additional three Hobart Class guided-missile destroyers
Serving as the basis of Australia’s maritime-based area-air and missile defence capabilities, the Hobart Class is a critical capability for both Navy and the broader “joint force” ADF capability. Despite procurement and construction problems, Australia’s Hobart Class destroyers will provide a quantum leap in the capability of the Navy’s surface fleet, serving as a task force air defence screen, secondary command and control hub and invaluable surface and subsurface warfare asset.
HMAS
Hobart and her two sister ships, HMAS
Brisbane and
Sydney, are Hobart Class Air Warfare Destroyers based on the Spanish F-100 frigates. The Hobart Class Combat System is built around the Aegis Weapon System, incorporating the state-of-the-art phased array radar, AN/SPY 1D(V), will provide an advanced air defence system capable of engaging enemy aircraft and missiles at ranges in excess of 150 kilometres.
Acquiring an additional three Hobart Class vessels serves to enhance the nation’s naval shipbuilding capabilities – maintaining the critical skills in both Adelaide and/or Henderson shipyards until the major construction Hunter and Attack class programs commence – while providing additional redundancy for the Navy in the face of increasingly advanced anti-ship ballistic and cruise missile systems and enhancing the protective layers around other major Navy assets, namely the Canberra class amphibious warfare ships.
Accordingly, the Coalition needs to lay down a Block 2 variant of the Hobart Class guided-missile destroyers with enhanced area-air and missile defence capabilities and enhanced anti-submarine warfare capabilities – specifically noise reduction characteristics – also need to begin upgrades of the existing fleet. "
I know this isn't on the radar afaik , but assuming there was political will (perhaps through a 2020 whitepaper) and sufficient funding was available, how practical/viable would a second tranche of Hobarts be? From a defence industry perspective, what would be the specific challenges and opportunities?