I'd say it should be possible to have a certain degree of compatibility just like I expect my GPU to work on any of the MB on the market supporting PCI-e(Space and cooling issues asside). The battery should be just a battery with a protection system. Charging and BMS should be separate and replaceable along with the battery. The OS of the car should support x number of BMS systems with a unified protocol.

You want a Li-Ion pack? This BMS and this shielding are required. You want Lead batteries? This BMS needs to charge it. Do you want that new battery tech? You need the new BMS for it and an OS driver for the BMS. Plug it in and it's done.