It says "new era", so it has to be something "new", IMO the only really "new things" they absolutely need are; new planes and new seats.
On the former, we know they have the MAX on order, so unless they are going to cancel them and present something else, then they need to start getting the Australian public convinced that we won't be turned into crash test dummies by flying on them (particularly important now that Qantas has gone the Airbus narrow body route, and Virgin will go it alone with MAXes domestically).
On the latter, some of their business class seats are so past their use by dates, they feel like sitting on 10 year old worn out trampolines. So some new seating and a retrofit for existing aircraft is definitely required, most likely the MiQ for J, which many of us have already tried, and seems the poster child for new aircraft orders elsewhere.
So, my guess... a "hanger event" tell us how "safe" the MAXes are, plus show off some new seats for a retrofit program?