With La Pocatiere doing the work and nothing on BBD books for TB after 2019 that I know of at this time, it looks like the end for the TB plant.
We can see now why 4401 got ship La Pocatiere for rebuilding. This will allow the plant to strip the car to see where the poor welds are and what is needed to happen to correct them. Train classes has started to learn how to take a car apart, fix the problem and put it back together.
This will allow La Pocatiere to go after Quebec City streetcar order if it happens.
Its time the city get off the pot and fund TTC to purchase the extra cars from someone else.
If TTC has all 204 cars here and using 15% spare ratio, that will allow TTC to have 171 ready for service daily, but still doesn't help to deal with pent-up demand for more service to met increase ridership. If you remove 6 cars from the spare ratio, it will still leave TTC with 25 cars as spare. Given the fact these cars are young, you could drop the spare ratio down to 15-20 cars.
At the end of the day, BBD has blow any chances of building more streetcars in NA over this mess.