Bloody Brian Burke
#1 CFL Fan!
My guess would be Shea Theodore - he's still RFA.Could be, but they still have a significant amount of cap space both this year and next. And likely they would be moving someone like Colin Miller to get Karlsson.
Sticking with RFA's and since we already mentioned Edmonton, Winnipeg's still got Morrissey without a deal, they have a veritable fuck-ton of assets to trade, they could even include Trouba to get rid of one troubled spot and with that kind of return Ottawa could even be persuaded to include Duchene and make the Jets utterly fucking terrifying (although in the most basic third jerseys ever made).
Jesus Christ I really hope he goes to Dallas or Edmonton.