Doubtful. Seabrook has surpassed Keith in terms of their play.
This, as a division rival I know which one gives our big guns bigger problems. Now Keith could get it back, but he hasn't been the same guy the last couple years. Seabrook has passed him and is much better in his own zone. Given the other guys offensive talents already on the list Seabrook as a big defensive d-man makes sense. I do expect Keith and Seabrook to both be on the team though.
Keith because of chemistry/ where he slots into the line up. As has been said: having Keith and Seabs as a pair allows for instant intimate knowledge/ chemistry between the two players. Makes for a solid pairing.