As of right now the lines are:

Higgins   Koivu   Ryder

Samsy   Plek   Kovy

Perez   Bonk   Johnson

Murray   Begin   Lats

Basically the centres shifted up and Begin or Murray will centre the 4th line depending on how the line works out better. The trade doesn't affect Kost that much since he is still a right wing, which is our deepest position (outside of goal). Unless someone moves to the left (or if he can move there, I don't know), he is still the press box forward. It does however, make him first in line for injury replacements, which should net him at least 15 or 20 games this season.