the new Southern Spirit train, Australia

In yesterday's snail mail was this brochure about the new extra-long-distance cruise train being operated by the same people who operate the Ghan (Adelaide to Darwin) and the Indian Pacific (Sydney to Perth), which will travel Brisbane to Sydney to Melbourne / Adelaide.   It seems this won't be a constantly scheduled service, rather, dates it will run will be announced in advance and you need to book in advance.  It will cost more than the existing standard trains on these intercity routes, but you will get more too.  More details on their website.