I do very much like the AMPV but alas, for Canada it has one fatal flaw...it's not a GDLS product. Domestic production of AFV's gives the CA the best chance of keeping its fleet at least reasonably current (something like a National Shipbuilding Strategy for AFVs) while foreign purchases are only likely to happen once the existing fleet is on its last legs.
I guess it wouldn't be impossible to negotiate with BAE to build an AFV production facility in Canada and there would be some great potential synergies with them across a whole range of systems for the Canadian military beyond the River-Class - AMPV/Bradley or CV90, M109, Archer, BvS10, ammunition, Mk41 VLS, APKWS guidance kits for 70mm rockets, etc., etc., etc. - but I have a tough time imagining the political will being there to cut out GDLS in favour of bringing in BAE in their place.
We will never buy enough tanks for London to be viable with Abrams builds/maintenance only. We could potentially have BAE produce tracked AFVs for the Reg Force and shift the LAVs to the Reserves but that would require a tectonic shift in the way the CA organizes the Reserves and I just don't see that happening any time soon.