The 26-year-old was sanctioned by the club in the wake of a mid-season trip to Bali, with Collingwood handing down a suspended $25,000 fine after the club "strongly condemned" his "disrespectful conduct".
Speaking on Sportsday, reporter Sam McClure said that De Goey wasn't expected back at the club until Friday, effectively ruling him out of contention for Sunday's meeting with the Giants.
"I'm not sure it's the end of it because when he doesn't play on Sunday against GWS I think we'll be talking about it more," he said.
"He's not due back to the club until Friday, according to people that I spoke to, so basically no chance at all.
"And he's been struggling mentally and emotionally the last few days which you can understand.
"I would put a line through him. I doubt he'll play."
Fox presenter Drew Jones also confirmed the news that De Goey was yet to return to the club on Wednesday.
The wait continues at Collingwood for Jordan de Goey. He won’t be at the club today, and will miss main training. In major doubt for Sunday’s clash with GWS.#afl
— Drew Jones (@DrewJonesFOX) June 21, 2022
The forward-turned-midfielder is out of contract at season's end, with Collingwood reportedly taking a lucrative extension offer off the table and parking talks until the cessation of the season for a new deal, leaving his future at the club uncertain.
McClure believes that the club could be set to part ways with the former number five pick.
"I've got some strong thoughts on how Collingwood have handled this," he said.
"I think they're conditioning their supporters and the list for the end of the year when I think they'll part ways with him."
Madgen will be required to tick off a few more boxes before his availability is confirmed as he works his way back from a shoulder injury.
Dean, who was drafted as a mature-ager in last year's Rookie Draft, has yet to feature for the club at any level in his maiden season following a footy injury, but will get his chance to impress in the final stages of the season.
Star ruckman Brodie Grundy remains a few weeks away from a return to the AFL side following a PCL injury against the Bombers on ANZAC Day, with the club aiming for a Round 18 return for the 28-year-old.