Doubt it seriously.Washington was the salmon capital of the world in the 1950's and 1960"s. We can be again if everyone drops their egos and goes to work to accomplish just that.
Dave
Carrying capacity of the rivers is not anywhere near what it was then, ergo not as many fish possible via wild runs.
Hatchery fish flooding the basins is out now, that is not happening.
So in short, the whole salmon capital thing returning is a non starter.
Wishing for the past will not make it so...