The pace bowler has taken over 300 dismissals in 71 Test matches with an stellar bowling average.
The Australian selection chief George Bailey has stated that pace spearhead Cummins will be a central figure in this winter's historic rivalry.
Speculation had been growing that the veteran bowler might sit out due to a persistent back stress problem that had not yet healed.
Initial reports from team management suggested no official announcement had been made regarding his involvement, with the five-Test series set to start on November 21 in Perth.
He revealed that Cummins is "building up" and felt positive about his chances of participating.
"We're aware that time is getting short and there are permutations involved, not just the physical problem, but further aspects," the selector added.
"We're encouraged. There's strong faith that he'll participate in a major part. Ideally from the opening match. Should that not happen, we'll reassess."
Past Concerns
The captain missed the ODI and T20 games against India and New Zealand in the previous weeks after examinations confirmed a lumbar bone stress.
Previous incidents include of back injuries, with flare-ups in several earlier campaigns causing him to miss multiple domestic campaigns in a short span.
The bowler mentioned he would be ""aggressive" and "take risks" in his recovery plan to ensure his availability for the Ashes.
He mentioned that he did not know if Cummins had begun bowling as part of his recovery but conceded it was "getting tight" for him to recover fully for the initial match.
Contingency Plans
If he's unavailable, ex-skipper Smith will assume leadership.
Versatile player Green was recently pulled out from the ODI lineup for their limited-overs matches against the Asian giants as a safety move because of soreness in his side.
Bailey described it as a "slight concern and confirmed that he's scheduled to appear in the Sheffield Shield, so will be "well-prepared to deliver overs."
"We put so much time has gone into building out the plan for him to participate for the initial game as an batting and bowling option," Bailey explained.
"He was only going to play the initial matches anyway. His aggressive style the willow in shorter formats, if it causes any delay for a short period, the choice was made to take a cautious route."
Match Calendar
Australia vs England: The Ashes
Spanning from late 2025 to early 2026
