"He's doing well with his recovery," head coach Lindy Ruff said Monday. "I don't have a date. I know he's progressing. He started physical activity. We'll just take it day by day, and see where he's at when we get back."
Hischier suffered a sinus fracture on Feb. 27 when an errant shot struck his visor, which was pushed into his face. The 22-year-old was placed on IR March 4 and put under concussion protocol.
Two weeks ago, March 15, Hischier underwent successful surgery for that frontal sinus fracture, and was projected to need a roughly three-week recovery period.
The Devils are currently in Boston and play the Bruins Tuesday night in the finale of a six-game, 10-day road trip.
"I spoked with (Hischier) before we left on the trip," Ruff said. "He was really upbeat, looked great. We're hoping we can get him back sooner than later."