The O's have not conceded a single goal during their winning run, which started immediately after they were beaten 5-0 by Arsenal in the FA Cup.
Revell completed more than an hour of their 1-0 victory over Oldham after passing a late fitness test following an injury he picked up in the previous match.
Jonathan Tehoue replaced him in both matches and will be looking to secure his own place in the team.
Midfielder Jimmy Smith has sat out of the last four games with a hamstring injury and looks set to be missing again.
Paul-Jose M'Poku's late winner against the Latics could see the Tottenham loanee handed a start.
Source: PA
Source: PA