I honestly expect Duchene will sign will NSH, they'll unload some salaries ie. Bonino and Turris to work him onto the team. Subban is likely gone in a few more years to open even more space. They'll be stronger even after the moves to free up salary. NSH window is good for possibly 5 years, but they have little prospects in their system.
However, the AVs are still 2-3 years away from contending. Sakic has done well in rebuilding the prospects and the team is still young. AVs are built for the future, the 2017/18 season is a sample of the potential...even though they've declined this season. A few trades ie. Barrie, Zadorov etc., 2019 Draft and another year of development of their prospects; soon the AVs could be a really good team.