Imho expecting every one of Pettersson, Boeser, Virtanen, Lockwood, Gaudette, Gadjovich, Lind, Dahlen, Brisebois, Gunnarsson and Demko, all of whom are presently prospects, to be Canuck regulars in three years is so far over the moon as to be completely out of touch with reality.
Right now one would expect Pettersson, Boeser and Demko each have a decent to good chance, but the others are all just lottery picks. Expecting every one of them to come through is similar to expecting to retire on future lottery winnings.
Two years ago we were seeing people pencilling Subban and Cassels into the Canucks lineup for 2015-16.
Three years ago there would have been people putting Jensen, Grenier, Gaunce, Mallett, Horvat, Shinkaruk, Cassels, Subban, Virtanen and McCann on their list of Canucks for this coming season (ie the equivalent to answer the same question three years ago.) It looks to me that one of those players will actually be with the Canucks regularly this coming season, with a small chance of a second one. Expecting 10 seems more than just a stretch.