Australia's ODI against South Africa in Guyana will be played against the backdrop of a pink-ball parley between their respective boards.
Officials are working to finalise the status of a proposed day-night Test as the two sides prepare to clash on Wednesday morning (AEST).
It's understood the "TBC" in this summer's schedule is likely to be removed soon, possibly as early as Wednesday.
The rivals are playing a three-Test series in November, with Cricket Australia (CA) desperate to make the Adelaide Oval finale a day-nighter.
CA, buoyed by the commercial success of the inaugural day-night Test, has already locked in a pink-ball game between Australia and Pakistan at the Gabba for December.
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Australia skipper Steve Smith expects his team will also face the Proteas under lights.
"My gut feel at the moment is we'll probably end up playing two day-night Tests in the summer," Smith told AAP.
"We'll see how it all transpires.
"I'm sure that will all come out over the next little while, about how that's progressing."
Proteas skipper AB de Villiers and many of his teammates have expressed concerns about playing the experimental fixture.
News Corp Australia reported last week that South African players had changed their stance on the issue and agreed to take part.
Negotiations have progressed but Cricket South Africa (CSA) and CA are yet to finalise some issues.
Talks are ongoing regarding logistics, with CSA wanting to ensure their players will be adequately prepared for what would be a step into the unknown.
Regardless of the colour of the ball used in Adelaide, it looms as the most high-profile Test series in Australia since the 2013-14 Ashes.
The Proteas have slipped to sixth on the Test rankings but memorably won their past two series in Australia, in 2008-09 and 2012-13.
Smith hopes Australia bank some confidence by beating South Africa in this month's ODI tri-series.
"I guess if you get on top of someone, I guess they sort of get that fear factor of bowling to you," Smith said.
"But it is a different format of the game so I won't be reading too much into it."
Fit-again spearhead Mitchell Starc can't wait to lock horns with some of the best batsmen in the world during the tri-series.
Starc suggested ODI wins could serve as a confidence booster during this year's Test series.
"It's always a bit of a chance for a team to get one up over the other," Starc said.
"Just to keep one in the back pocket and pull it out if you need to in the middle of a series and let them know we've got the wood on them, if we can get over them in this series."
