As of right now, the additional roles of the Canadian Armed Forces and specifically Canadian Forces health services remain to be determined, though I will note that in the omnibus RFA that was developed as part of Operation Laser, one of the planning contingencies included in it is a role for the Canadian Armed Forces in mass vaccinations. That's factored into the planning, but it remains yet to be determined whether or not we will be required in that regard.
On November 27th, 2020. See this statement in context.