Exactly Ryukouki, even if they are/arent upgradable, it will probably be a long while before it will have any relevance, and if we never get off 4.1-4.5, it will have no relevance at all
We can always ask the question, but there really is no point at this time. By the time a new patch comes out, there's most likely going to be more cartridges, and a hardware fix could more than likely fix the issue and people wouldn't even bat an eyelash in the long run, lol. Again this is wild speculation, I don't have a crystal ball equipped at the moment...