No one knows about Fox's intentions. The pessimists will give all the reasons why they don't think he'll sign here and the optimists will give all the reasons he will.
I think given how the negotiations are going with TVR and how McKeown, Martin and other righties in the system develop next season, he might be given a real shot to make the team in 2019. That could entice him to sign here. Or the logjam on the right side and the call of a bigger city or more successful franchise could sway him to go UFA. But no one knows right now. Maybe not even Fox himself.
As for the NHL players in the trade, like I've said before I'm already excited to have Hamilton. If we can figure out his partner or a good partner for Pesce, we've got a really solid top 4. Even better than the hypothetical one we once thought we would have with Hanifin, Slavin, Pesce, and Faulk.
If Ferland can remain a 20 goal, 40 point power forward type I really like the new mold of the forward group. We already have McGinn who punches above his weight, and we'll have the Russian Jamie Benn (just what I think of Svechnikov after watching more and more of him). Add Jordan Staal and we're all the sudden not quite as much of a pushover as we once were. Prospects like Foegele and Zykov also showed they didn't mind going to the net and taking punishment too.