Wicks strikes me as a change of scenery candidate; injuries have plagued him and he might be better off with a fresh start somewhere else. His trade value isn't super great, but I could see teams targeting him as a throw-in as part of a bigger trade.
I frankly expect most teams' trade demands to begin with Wiggins. Assuming he keeps up his minor league performance, he should see time in MLB come August/September and he's one of the few pitchers in the Cubs' system you can project as a 2/3 if he stays healthy. The Cubs might view him as untouchable, but he's the sort of prospect who would bring teams to the table if you wanted to make a blockbuster deal.
I'm a bit concerned that Kevin Alcantara might have hit a wall in AAA. Caissie at least rebounded from a poor start and seems to be back on track with his recent hot streak, but Alcantara is still scuffling. While I could see him be a common ask from other teams, I'd exercise caution.