Seriously doubt they will.  Airbus doesn't need to bury them now.  Airbus now has controlling interest in an advanced aircraft design that beats anything they can put on the market in that category.  
The biggest drawback for sales of this aircraft was the concern that Bombardier may go under and no longer support the aircraft.
This is no longer an issue.  
If Bombardier looks to go under, Airbus has first dibs to scoop up the remaining interest in the C series for peanuts.
The C series will remain strong with Bombardier or not.
Airbus has already won.  Boeing lost.  Bombardier may get some of the scraps.
The deal is too sweet for Airbus to hang them out to dry.  They stand to make a lot of profit from this aircraft now before Boeing can catch up.