Yes. I'd say that the Trans Mountain expansion, which will provide around another 690,000 barrels per day into the Pacific market, could provide a good relieve valve for this cut-off of exports from Iran.
However, this wouldn't completely patch the hole. In terms of short-term infrastructure requirements that would be required in this front, it would be more likely that Saudi Arabia would step in to manage the loss of production from Iran. However, there are also concerns there around the possible goal of the Houthian insurgency in Yemen, which has previously attacked Saudi Arabian oil infrastructure. There's a possibility that something like that could happen again, if Iran chose to escalate this into a more regional conflict.