Pacioretty out injured 6 weeks, not that he was a lock but he's an option. Him, Tuch and Eichel all going to be dealing with injuries. Emily Kaplan on ESPN said whenever Eichel gets his surgery it'll be 6 weeks until he's on the ice, but 3 months until he's game ready. So I think that is all but shutting the door completely from Eichel. If a trade happens tomorrow and he get's surgery the next day, 3 months takes him to mid January. Unless he has a faster than expected recovery I find it hard to believe whatever team he goes to will let the Olympics be his first action back.
Really excited about Jack Hughes though, he looks like he's taken big steps each season now and he could really claim his spot on this team with the lack of depth at C.