Cummins, who fractured his wrist during the fifth Ashes Test at the Oval (July 27-31), has been advised rest for six weeks.
Former England captain Vaughan said Australia should consider having Mitchell Marsh open with Khawaja.
David Warner and Ashton Agar were included in Australia's squad for next month's one-day international series in India on Thursday despite being sent home from the test tour this week.
Australia might be forced to use support staff as substitute fielders in the T20 World Cup warm-up games.
Speaking as quoted by Fox Sports, Waugh said, "I think they have picked the team on winning these last two Test matches."
Though Australia have dominated the rain-hit Test, time will most likely deny the hosts.
Images from the World Cup Pool A match between Australia and England at the Melbourne Cricket Ground.
Marsh expects the series as well as the upcoming World Cup to be high-scoring affair.
'I'm doing my best to make the number six spot my own, that's all I can do.'
'He is someone who has had a big influence on a couple of series. Got to try to keep him quiet.'
Australia's decision to field an unchanged frontline pace attack last summer might have been unusual as selectors now reassess their seam options after losing allrounder Cameron Green.
Australia bring an ageing squad and a few players short of fitness to the T20 World Cup but will have the same easygoing confidence
Mitchell Marsh kept calm after New Zealand got the sniff of an unlikely victory and scored his sixth one-day international half century to guide Australia to a four-wicket win in the second match of their one-day series on Saturday.
Australia legend Ricky Ponting believes a cheeky comment from India opener Yashasvi Jaiswal may have ignited Mitchell Starc's career-best performance during the second Test in Adelaide.
Pat Cummins took five wickets as Australia maintained their unblemished record in 'Pink-ball' Tests with a thumping 10-wicket victory over India in the second Test in Adelaide on Sunday to level the five-match series 1-1 in just two-and-a-half days.
Jasprit Bumrah took four wickets as a rampaging Mumbai Indians demolished Lucknow Super Giants by 54 runs.
With Marsh forced to sit out the opener of a three-match series, Australia called uncapped batsman Ashton Turner into the squad as cover for Saturday's Sydney Cricket Ground conTest.
IMAGES from the 2nd ODI played between England and Australia at the Headingley Cricket Ground, Leeds, Britain, on Saturday.
'So excited to be a part of @MLCricket @SFOUnicorns.'
Starc redeemed himself against Delhi by claiming 2-25 in three overs
Australia were grossly under-prepared for the India challenge, while pacer Mitchell Starc virtually ran out of ideas when Rohit Sharma smashed him for 29 runs in an over in their Super Eights match in Gros Islet (Saint Lucia), says former-cricketer Brad Hogg.
Former coach Ravi Shastri has backed India to win the Boxing Day Test, saying the visitors have exploited Australia's "brittle" top order to have their "nose ahead" in the Border-Gavaskar Trophy series.
'A lot to work on but this is the blueprint of the way we want to play Test cricket and hopefully we'll keep doing that.'
Apart from Renshaw's inclusion in place of Warner, there are no changes to the squad which beat Pakistan by eight wickets in the third and final test to sweep the series 3-0 last week.
Pat Cummins registered the first hat-trick of the 2024 T20 World Cup as Australia restricted Bangladesh to 140 for 8 in the Super Eight match at the Sir Vivian Richards stadium, in Antigua, on Friday.
Will Australia become the first team to win back-to-back T20 World Cups?
Mitchell Marsh hit successive sixes off the last two deliveries as Perth Scorchers from Australia beat South Africa's Dolphins by six wickets in a group league match of the Champions League T20 in Mohali on Saturday.
Australia will look for another dominating show but need to be cautious when they face a tenacious Netherlands in the World Cup 2023 match in New Delhi.
Young leg-spinner Tanveer Sangha has been cut along with fast bowler Nathan Ellis and rookie all-rounder Aaron Hardie.
Rishabh Pant's IPL 2025 campaign hit a new low -both statistically and symbolically - on Sunday, at the HPCA Stadium in Dharamshala.
Left-arm fast bowler Mitchell Starc will return from a broken foot during Australia's limited-overs triangular series in the West Indies in June.
Mitchell Marsh backs Glenn Maxwell to play big role in Australia's World Cup campaign
Lyon celebrates 500 wickets as Australia thrash Pakistan by 360 runs
Australia clinched a 3-0 T20I series sweep over Pakistan in Hobart, powered by a blistering unbeaten 61 off 27 balls from Marcus Stoinis on Monday.
A fit-again Suryakumar Yadav will be expected to immediately deliver the goods when faltering Mumbai Indians and Delhi Capitals lock horns in a bid to arrest their slide in their Indian Premier League clash here on Sunday.
Pant made 18 in his first outing since that accident against Punjab Kings and Delhi succumbed to their second successive defeat on Thursday when inaugural champions Rajasthan Royals beat them by 12 runs.
IMAGES from the ICC World Cup match played between Australia and Pakistan in Bengaluru, on Friday.
Australia have dropped out-of-form limited overs specialist Glenn Maxwell from the squad for the one-day international series in Sri Lanka next month, the country's cricket board announced on Sunday.
Australia leave India with the world number one ranking in one-day cricket and will return to the subcontinent for this year's World Cup with confidence after edging the hosts 2-1 in the series.
In a nail-biting finish at the MCG, Australia clinched a thrilling two-wicket victory over Pakistan in the first ODI on Monday night.