The Predators signed Forsberg, 28, to an eight-year, $68 million contract on July 11.
He has 469 points (220 goals, 249 assists) in 566 NHL games, all with Nashville and is its leader in goals and ranks fourth in points. Forsberg is coming off his best NHL season with career highs of 42 goals, 42 assists and 84 points in 69 games.
"We feel like he's just coming into the prime of his career right now," Hynes said. "It's tough to find players with his kind of talent, and now I think with the mindset he has, and the maturity on and off the ice he's going through as a person, I think the best is yet to come for him."
Expect Forsberg to once again play on a line with Duchene, who had an NHL career-high 86 points (43 goals, 43 assists) in 78 games last season.
The Predators improved their forward depth by signing Niederreiter to a two-year, $8 million contract on July 21. The 29-year-old has scored at least 20 goals in six of his 11 NHL seasons, including last season, when he had 44 points (24 goals, 20 assists) in 75 games for the Carolina Hurricanes.
An aggressive forechecker and feisty player, Niederreiter may play alongside Granlund. The two were teammates with the Minnesota Wild for parts of six seasons (2013-14 through 2018-19).
"[Niederreiter is] a big, strong player," Hynes said. "He plays in the hard areas. He's a proven offensive producer. He's got good size (6-foot-2, 218 pounds), very competitive."
The Predators traded forward Luke Kunin (22 points; 13 goals, 9 assists in 82 games last season) to the San Jose Sharks during the offseason. Philip Tomasino, 21, who had 32 points (11 goals, 21 assists) in 76 games as a rookie last season, could fill Kunin's top-six role.
Nashville added some bite to its fourth line by signing forward Zach Sanford (6-4, 206 pounds), who had career highs of 169 hits and 67 blocked shots in 80 games for the Ottawa Senators and Winnipeg Jets last season. He also won the Stanley Cup with the St. Louis Blues in 2019.
The Predators have made the Stanley Cup Playoffs eight straight seasons but will be seeking to advance past the first round for the first time since 2018.
"There's a lot of good things that have gone on," Hynes said. "I think moving forward, we really feel like we did some due diligence, and we strengthened our team in the areas we felt like we needed to be stronger."