Unfortunately I don't see a way Canucks can be a legit contender either way.
Miller needs to go. EP can stay, but he's mentally too weak (and maybe physically too) to be the 1C that will lead the charge through playoffs when it gets tough.
Trade Miller or trade both, either way sets the team back at least a full season to find ways to replace the holes, never mind actually improving the team.
This team is doomed with this core. Maybe Petey will have another 100 pt season and disappear in the playoffs or have another bad season after a good one. It's becoming too predictable that this is just who he is. In the grand scheme, I kind of expect him to put up 4 elite seasons out of the 8 he signed for. So if the team keeps him, go in with that expectation.