Canadian plants are good for products which can be on sale both in US and EU. Keep it in mind.
Since the details came out about the contract talks with the canadian unions i've thought this was going to happen.
Brampton has been due for a renovation of sorts since a long time. The lx/ld/lc replacements were originally due around 2020. And there was nothing new in the plans untill at least 2024.
There now is the new Mack plant that will produce Grand Cherokee and Grand Cherokee. Looking at the number of employees for this new plant one would asume Mack will be able to eventually built as many vehicles as Jefferson North has been building. To me it would make a lot of sense if after the current Grand Cherokee ends production they will use Jefferson North as extra location for the New Grand Cherokee as they should be able to up GC + GC L sales from 300000 to 400000 annually.
That would leave a capacity of around 200000 annually. That would fit with the capacity needed for the STLA Large based Charger and Challenger + a new Dodge CUV/SUV.
From 2024 onwards there is tariffless trade possible for cars between Canada and EU.
It could make sense to built vehicles in Brampton that are marketable in the EU as well as in the US. Electric vehicles based on STLA medium with Canadian sourced batteries and built in a Canadian subsidized plant could make a lot of sense as well.