Dumoulin and Fabbri are the most likely to be moved. Can't imagine any of the young players going unless it's in a package for something big. Gibson trade seems unlikely unless something like a panic moment for a team that gets a goalie injury at the wrong time. Killorn is unlikely to go. Everyone else is 4th line/AHL value.
My guess is Dumoulin or Fabbri retained gets a 2nd or 3rd + 4th. Both open up space for other players: young players with Dumoulin's spot and, hopefully, a top 6 forward with Fabbri's spot. I'm just not confident a top 6 scoring forward will be available by the trade deadline.