You're listing some pretty effective and established NHL top-9 forwards here. Even if Suzuki has more raw talent, I doubt his ability to outplay at least the bolded as early as next year.
What was the problem with Suzuki at camp this year? Pretty simple to see. He was too easily separated from the puck in one on one battles. The kid needs to gain lower body strength and become more elusive with the puck. It was the same for Pacioretty, Galchenyuk, etc. and is the same for Kotkaniemi now. It's not a terminal disease, just a part of growing up and filling out. For some, because of genetics, a bigger, more dedicated effort needs to be put in (no, not Steroids like with Tinordi).
The point pf placing a kid with the talent that gives him top-6 upside on a 3rd line is to subtract him from more difficult match-ups as he develops (both hockey-wise and physically) so he can play to his strengths at the NHL level and produce adequately. Am
I concerned that Suzuki won't produce more offense than Armia? Not in the least.
That he won't produce more goals than the Lehkonen we have seen beyond his rookie season? Not in the least.
Will Byron produce more goals than Suzuki? Maybe, but Byron brings something anywhere in the lineup and could serve to add a scoring element to a fourth line, something we need, without exposing that line defensively.
Suzuki has the hockey sense, IMO, to properly anticipate plays from KK, instead of whiffing on golden opportunities served up by the Finnish C. Both players have the ability to slow down and speed up the game and would be good complements for each other.
On a kid line with Lehkonen, perhaps the tandem of KK-Suzuki could also jump start the Finnish winger since both are capable playmakers and can act as a double threat to also shoot.
IMO, KK and Suzuki are ideal players to partner up for the future and the sooner the better while they can both be inserted in a more sheltered third line role with some PP time as extra TOI in game situations that cater to their strengths.
I look at Suzuki's season as a developmental one next year and the real fruits of those efforts alongside KK (as they get to know each other) will come in the subsequent seasons. If Suzuki plays like gangbusters, it will be a bonus.
Suzuki is too smart and has too many tools not to become a gamer in the NHL, IMO. When? Only his play will dictate that.
Suzuki might not be ready for the NHL either as he may still lack the strength and/or explosiveness/elusiveness with the puck to hold his own. If that's the case in training camp, by all means, send him to Laval. Learning under Bouchard is no purgatory and can also assist him in becoming the best player he can become down the line.