I doubt Fletcher is looking to trade Ghost, and certainly not at the TDL.
However, I think he's willing to trade almost anyone.
I hope he has the top young players, Patrick, Lindblom, Provorov, Sanheim, Myers, Frost, Farabee off the table, their upside is higher than anyone we'd receive in return.
Ghost and TK are potential trade bait because they have value, and don't have the upside of the others (TK is becoming apparent is what he is, he'll get better as a shooter, but he's not going to be an elite shooter, a reliable two way forward or a great playmaker, and Ghost will never be rookie Ghost again). That doesn't mean you're looking to move them, but you'll listen to offers.
Voracek and JVR are more a matter of fit, JVR hasn't really worked out with anyone, and Voracek only with Couts. So given their cap hit, and potentially finding a forward who could make it easier to fill out the lines, Fletcher might be willing to move one of these two. Especially if he plans to go FA shopping.
The rest, who cares?
At the TDL, the probable moves are Simmonds, Raffl, MacDonald with money retained, Hagg for the right offer (he's cheap depth so you don't give him away), and Gudas/Laughton if someone wants to overpay.