We had FSN Detroit Alt last year that carried FSN+ games (channel 669 I believe) and they did do HD (there was at least one Wings game I remember on it in HD). Later in the season it was shared with CSN Chicago. So I would assume HD would again be available on it this year.
This year with the channel moves 663 is FSN Detroit and 664 will carry overflow games that are on FSN + for FSN Detroit.
This year with the channel moves 663 is FSN Detroit and 664 will carry overflow games that are on FSN + for FSN Detroit.