Barring a last minute change in negotiations, the Islanders appear set on trading him.
Several teams are interested in MacDonald, including the Boston Bruins, Los Angeles Kings, Colorado Avalanche, Anaheim Ducks and Detroit Red Wings, and all signs point to him being moved in the near future.
Last month, MacDonald turned down a four-year, $16 million contract extension pitched by the Islanders.
The native of Judique, Nova Scotia, is believed to be seeking a deal in the five-year range worth closer to $5 million, per season.
It's unclear what the Islanders are asking in return for MacDonald, though a high draft pick and young defenseman could be packaged in exchange for his services.
In 59 games with the Islanders so far this season, MacDonald has registered four goals and 20 assists for 24 points, and leads the team in ice-time, averaging 25 minutes and 33 seconds, per game.