First off, the game isn't 'limited edition'. As with every physical good ever made, there is a limit to how many we will have in stock at any one point in time, but our intent is to keep making production runs for as long as people want to buy them.
Argentina isn't a part of our initial launch - since this is a brave new world for us, we wanted to focus on NA and EU initially and learn how to do this better. If the game is popular and we see a demand in Argentina (or any region) we'll look to spin up a version of the game for your region. But our plan is to keep that experience as player-focused as we can - for instance, if we launch in Korea, we'd localize the game for those players. Localizing is no small feat on League and with a product with the amount of text that MvM has, it will take some time to make sure we do it right. One pooly translated rule can really tank the experience, and since you can't hot-fix a board game, we have to be very careful in how we tackle the problem.
There are also other issues that we're paranoid about - like distribution and whatnot - and confining our initial release to one or two areas allows us to make sure the experience goes smoothly for other regions. You might not get the initial release. There's a chance that if the game doesn't sell or is poorly received, we won't bring MvM to your region (why keep selling a bad game?), but assuming those things go as planned and we see a demand in your region AND we can get over logistic hurdles for your region, then I would expect a reprint in your region, eventually.
Sorry if this isn't the answer you were hoping for, bud. But I hope this at least gives you some context into our approach.