"We like to reward those who've done the job before in the jersey."
The 32-year-old prop is set to make his 12th Origin appearance but Walters was unsure if he will directly replace Myles in the starting side or whether he will promote another one of his bench forwards.
Queensland are also sweating on the fitness of North Queensland quartet Michael Morgan, Justin O'Neill, Johnathan Thurston and Matt Scott, who face Cronulla on Monday night in the final NRL fixture of round 14.
Lillyman has been a reliable performer at club level despite the Warriors inconsistent start to the season, averaging close to 120 metres and 30 tackles in 50 minutes per outing.
Buoyed from his time in the Queensland camp, the 32-year-old returned to Auckland and scored his first try in 78 games in last week's morale-boosting win over Brisbane.
He followed up with an impressive performance in Saturday's 50-14 rout of Newcastle, leading the forwards with 153 metres from 17 carries, and providing a tip-on pass to put fellow prop Albert Vete over for the opening try.
"The big challenge for us after that Brisbane game was backing it up," Lillyman said.
"We really went out there and continued to play with that attacking flair and managed to score a few points."
Queensland: Darius Boyd, Corey Oates, Greg Inglis, Justin O'Neill, Dane Gagai, Johnathan Thurston, Cooper Cronk, Matt Scott, Cameron Smith (capt), Jacob Lillyman, Matt Gillett, Sam Thaiday, Corey Parker. Interchange: Michael Morgan, Josh McGuire, Aidan Guerra, Josh Papalii.
- with AAP