Unless he officially retires before the draft we're going to lose important players because of him.
Not just Landy, but also because of the direction CMac decided to go this year with the D core, giving Toews a raise long term, and perhaps keeping Girard, while trading their cheapest top 4 capable defenseman.
It remains to be seen if it'll be for better or worse, but the direction they decided to go down this year, will have many repercussions. One of them being they will have to lose one or perhaps two key players next year that they might not have going another direction.
Though I think there's a chance if they lose early in the playoffs, Cale may have hip surgery and go on LTIR until the playoffs next year. Which would help a lot with their cap, and may prevent other losses.
But then the question is, how does the Avs D core, and how does Toews look without Cale, and how does Cale look the first month or two coming back from hip surgery in the playoffs? A little scary to think about.