I don't know that I can answer that for you. I haven't been told that this is a fact. I have heard that there's a possibility that the C Series may be attached to it in some way. It's the same with the centres of excellence. The sale of the aircraft, and having major carriers such as Air Canada and international leaders, such as Delta, more recently signal that they're prepared to purchase the aircraft sends a very strong message to the global marketplace not only of confidence in the company but of confidence in that particular aircraft.
On May 9th, 2016. See this statement in context.