Although Holland wouldn't provide a date for the 19-year-old forward's promotion, NHL teams can carry more than 23 players after Monday's trade deadline. Detroit may also elect to send rookie Michael Rasmussen back to his junior team, St. James notes.
"He's showing more confidence, he's winning more puck battles, he looks like he's adjusted more to the pro game," Holland said of Zadina. "Points are (a) result of doing things right."
Zadina was selected sixth overall in the 2018 NHL Entry Draft. He's collected 15 goals and 14 assists in 43 games with the AHL's Grand Rapids Griffins.