Next to zero, IMO. I think they're more likely to trade Nemo than Desharnais
Yet it would be interesting to see how both could be deployed in the lineup. Why would a team not look at moving Kulak at this point who is not a top 4 D either but who comes at higher sticker price. The skating prowess and movement that Kulak has would be more than replaced by Broberg getting more regular minutes. Indeed at some point Broberg will require this for proper development.
I would be hesitant to move either of Desharnais or Nemo as they have shown indication of being gamers. The kind of player personalities that bang open doors, rather forcibly, that play well enough to basically force the orgs to take a greater look at them. Theres a physical component of both that work well in ownzone. Would seem to be two D that could mix in the lineup or even gasp, at some point together as a twin towers unit.
Lets really deep dive with these two to see what we got before moving either. Kulak could be a moveable contract. Couldn't Ceci even be in cards for moving? How would Nurse look with either of Desharnais or Nemo down the road. Theres a component of Nurses physicality that has reduced. But he's skating fine and maybe we free up Nurse to be more the skate puck out type D if we have a strong stay at home. Ceci has punched over his weight here and I appreciate that but it could be we have at least part of an answer down the road in a possible pairing.
In anycase if no other moves are possibly I would hold onto Desharnais/ Nemo for this year as they've shown to be good plug and play D depth at this level in case of injuries or unforeseen circumstance.