Maybe? This is the best center that has taken to the ice wearing a Ragners jersey since someone names Gretzky. You look at his trajectory and the 70+ point season was what you would expect. Put him on a team with a better supporting cast, you you are probably looking at a 90 point player. Not to mention that he goes out against the opposition's top players a la Bergeron.
Everyone wants Byfield. But as of today, you likely need a top 2 or 3 pick to get him. Zegras? If he ever puts up a season like ZBad just did, it would be a major home run. The chances of him becoming a player like ZBad are not great. Sure Gorton wanted him. That was no secret. But that may not have been because he is seen as Mika's replacement.
The chance of them eclipsing Zbad are small to begin with. The chances of them doing is within a year or two are almost non-existent.
Or you luck out, get Byfield and have him be the 2C for the next 6 years and then eventually take over as 1C. This age profile thing is becoming ridiculous. ZBad himself is a young player and will continue to play at a high level for the next 6 years or so. The Rangers should be so luck that ANYONE of the players you mention can eclipse him within that time frame. You are grossly underrating ZBad.