At this point, I think it's a 90% chance that Vegas is the team acquiring Eichel. Usually when leaks come this late into the game, the t's are getting crossed and i's are being dotted. The likely hold-up is the contingency compensation in the event Eichel cannot recover from surgery. But this deal will likely be finalized by mid-week, I would think. Unless a poison pill is introduced that collapses the entire trade.
I wouldn't be shocked if the deal involves Tuch, Hague and picks. The Sabres are loaded with young, smaller prospects and I'd imagine that adding some size is a factor in this deal. I could be wrong, but I think the Sabres concede on Krebs and Theodore while the Knights give in and offer Tuch and Hague as main principles. There could also be another salary piece going back to Buffalo to make the money work.