Usman Khawaja has propelled the Brisbane Heat into the next stage of the Big Bash finals but is no guarantee of lining up as he considers whether to give himself a break before the Test tour of India. 

Khawaja was one of five members of the Test squad who played in Friday night's rain-affected eliminator final between the Heat and Sydney Thunder, won by the visiting Brisbane team.

Earlier this week, the BBL said the Heat's Khawaja, Matt Renshaw and Marnus Labuschagne could all line up should the team make it through to Sunday's challenger final against the Melbourne Renegades.

Their Test teammate Mitch Swepson will miss the game to attend a warm-up training camp for spinners flying out to India on Wednesday.

The Test batters ship off to India on Tuesday and are in for a busy four days before then, following on from a busy home summer of BBL and Test cricket.

If the Heat trio were to play on Sunday, they would travel to Melbourne for Sunday's game, before returning to Sydney on Monday and attending the Allan Border Medal ceremony and then taking another flight to India on Tuesday.

After scoring 94 in the Heat's win, Khawaja said he had yet to consider whether that was how he wanted to spend his last days in Australia for nearly two months.

"I haven't thought that far ahead if I'm being honest," he told reporters.

"We're obviously going away for six-and-a-half weeks, my family is coming over for the AB Medal that's happening on the 30th. There's a lot happening right now.

"I wanted to just win this game and then I'll cross that bridge and figure out what I want to do.

"I'll have to talk to coach about it first and see what he can do."

With the Thunder eliminated and his BBL cameo over, David Warner now has extra time at home before flying out for what is set to be his last Test tour of India.

He would not reveal whether he would have played against the Renegades in the knockout final had the Thunder progressed, but encouraged his Test teammates at the Heat to do so.

"I don't have to answer that question now," Warner joked.

"The Heat boys, it's good for Australian cricket that those guys are here and they're having that opportunity to play.

"With their momentum tonight, there's no reason why they wouldn't play."