Nothing 2 years from now is clear.
Senators in 16-17 went from a young core of EK, Hoffman, Turris, Stone, Ryan, Brassard, Ceci and emerging Dzingel, Lazar, and Claesson going to game 7 of the ECF
to
Senators in 18-19 with a core of Stone, Duchene, Tierney, Dzingel and a new core of Chabot, Tkachuk, White, Balcers and Lajoie emerging. (minus EK, Hoffman, Turris, Brassard; Dzingel only young guy that made it)
to
Senators in 20-21 having White, Chabot and Tkachuk remaining and a new core of Batherson, Norris, Stutzel, and Formenton emerging. (minus Stone, Duchene, Dzingel; Chabot, Tkachuk, and White only young guys to make it)
Hard to say what happens in 2023-2024. Turn over every 2 years has been massive for Ottawa in the last half decade, even going back to pre EK times with Spezza/Heatley/Fisher/Vermette losses.
You could argue a little stability would be nice considering all of our turn over but I'll say Zub has shown what he has and having him for two more years at a discount is a good move that can't hurt the team the way having him at 4.5 mil in 3 years might.