Colorado head coach Jared Bednar said Drouin is making improvements but still has no timeline for his return.
Panarin has missed the last two games with an upper-body injury but will return for Friday's game against the Dallas Stars. The Rangers have failed to score more than three goals in five straight (1-4-0) and can ill-afford to be without Panarin's team-leading 36 points (15G / 21A) in 29 games.
Duclair has not played since suffering a lower-body injury in mid-October but could return to the lineup on Saturday against the Toronto Maple Leafs. The 30-year-old Duclair was signed in the offseason to add an offensive punch to a typically low-scoring Islanders club and was off to a solid start before his injury, with three points (2G / 1A) in five games.
Gustafsson is battling an illness and could be unavailable for Saturday's game against the Minnesota Wild. The 24-year-old Gustafsson has only played three games this season, only one in the last nine, and has yet to score a point.