Yeah there's no way Anaheim gives up Zegras. That was the one downside of winning Kakko last year but it is what it is.
That being said, I do think the Rangers will keep their ear to the ground for additional center prospects. Strome is a fine stop-gap until Chytil is ready to take over, but that also makes the assumption that Chytil will in fact take over. If he ends up being a guy who is much better on the wing, the Rangers don't really have anyone in the system behind him who looks like they could eventually get there. That's a trade that can be made later of course but if a guy like Glass, Newhook, Krebs, or whomever pops up then maybe they jump on it. We know they love to circle back to guys they were high on at the draft.
That's why Vegas is an interesting trade partner. If they really want an offensive RD to add to the lineup, they have two center prospects we know the team likes. They also have Alex Tuch who is locked up at a reasonable hit for a long while and brings the kind of game that the team is keen on adding. They're also in need of an heir to Fleury.