"I have one year left in the contract, so we'll see if I even play," the 33-year-old told The Boston Globe in comments published Saturday. "We'll see. Always a possibility."
Rask is 291-158-64 with 50 shutouts in 536 NHL games and has more wins than any goalie in Bruins history. He told the Globe he would not play in his native Finland if he chooses not to pursue a new NHL contract. Rask and his wife, Jasmiina, are expecting their third child in April.
"Just be home," he said. "The wear and tear of the travel with two, almost three kids now, makes you think. I love to do it. But it's tough."
Rask leads the NHL with a 2.12 goals-against average (minimum 30 games), is second with a .929 save percentage and tied for second with five shutouts this season, the seventh of an eight-year, $56 million contract he signed July 10, 2013 (average annual value $7 million).
The Bruins' other goalie, Jaroslav Halak, turns 35 on May 13 and can be an unrestricted free agent after this season.
Boston has goalies Dan Vladar, Jeremy Swayman, and Kyle Keyser in its system. Swayman, a nominee for the Hobey Baker Award given to the top player in NCAA Division I men's ice hockey, signed an entry-level contract with Boston on March 18.