Carnival Cruise Line sailings out of Brisbane will be announced shortly as Costa Luminosa is prepared to join the fleet.
Itineraries will initially include the Great Barrier Reef and Airlie Beach.
As destinations open over time, ports of call such as Noumea and Lifou Isle in New Caledonia, Port Vila and Mystery Island in Vanuatu, Papua New Guinea and Fiji are due to be introduced.
Then 2,826-passengers ship joins the Carnival Cruise Line fleet in September ahead of running cruises in Australia from November.
The vessel is a sister ship to four other Spirit class ships already operated by Carnival.
Carnival Luminosa will operate seasonally between October and April from Brisbane, then reposition to Seattle, where it will sail Alaska itineraries from May until September, before returning to Australia
Carnival said: “Given the short timeline to get Carnival Luminosa ready for service, the ship will go through some modest updates to change over from Costa to Carnival over the next few months ahead of the November service start-up.”