Released as part of the Nurburgring 24 Hour weekend, the new spec EVO machine features revised grille and internals.
The manufacturers too had to play their part, with Mercedes the first to have moved its own development process earlier so the car is ready for homologation in October.
“The intention and desire is there 100 percent to do it,” Bathurst 12 Hour event manager Kurt Sakzewski told Speedcafe.com.
“As you probably saw in the media recently, Mercedes with their EVO kit for the AMG GT3, they have already started that process in terms of the FIA homologation and the SRO BOP (balance of performance).
“There's every chance that they could have that car BOP'd, ready to go for next year's 12 Hour.
“We'd be really excited to see that, to have a 2020 spec car at the 2020 race.”
Sakzewski hopes it's the first of a flurry of new cars making their debut at Bathurst as manufacturers realign their development schedules.
That is no easy feat, with design processes often have significant lead times.
“Given the timelines for developing a new car, it's probably three to four years in most cases, it's not the kind of thing they can just do the year after you tell it to them,” Sakzewski said.
“So hopefully Mercedes being the first one to set the standard that the other cars the manufacturers' are working on, because you know there's a desire for them as well.
“They would love to be at the first race of the year with their current model car, do the whole Intercontinental GT Challenge with the one model, so everyone's got the same desire.
“Moving the date of the BOP forward is the easy bit,” he added.
“The tricky bit that's back on the side of the manufacturers is them being able to have their car ready to make those earlier dates.”
Mercedes last won the Bathurst 12 Hour with its previous model, the Mercedes Benz SLS AMG GT3, with Thomas Jaeger, Alexander Roloff, and Bernd Schneider in 2013.
Alongside the 2020-spec Mercedes a host of other cars are set to make their Mount Panorama debut, including the 2019 Aston Martin Vantage AMR GT3, McLaren 720S GT3, Porsche 911 GT3 R, Lamborghini Huracan GT3 EVO, Audi R8 LMS GT3 Ultra EVO.
The 2020 Bathurst 12 Hour runs from January 31-February 2.