"I don't really need to know until the middle of June," Holland told ESPN.com on Thursday.
"I saw him on the weekend. But we didn't really touch on it. I'm letting him go through whatever process he needs to go through to make a decision."
The Wings are most likely looking to have an answer before the NHL Draft on June 22, to allow them to react either way in terms of trade talks.
Meanwhile, blueliner Brad Stuart will also be eligible for unrestricted free agency July 1 and has been rumored to want to return to the West Coast due to family reasons.
However, Holland is not closing the door on the 32-year-old if he chooses to return to the Wings' lineup.
"I told Stuey, 'Go home, take a month with your family'; told his agent I would talk to him prior to the draft," Holland said.
Speculation suggests that Stuart could be one of the San Jose Sharks' targets, as the veteran defenseman began his career there and could agree to a reasonable offer.
In 81 games with the Red Wings this season, Stuart has tallied six goals and 15 assists for 21 points, and has a plus-16 rating.