Vehicules Electrique in Montreal seems like they are working toward swapping 40kWh batteries into 2011- 16 Leafs.
Scroll down to see a video describing their work with the new 60 kWh pack.
Not exactly Montreal, but Trois-Rivieres, about 140km northeast towards Quebec City. This is interesting news. I've been there to recharge on their level 3 DCFC. I'll make a point of stopping there again to find out more.