So what about people in like Australia and America? (and other countries) will we get a chance to download Diancie?
Okay, you need to understand what that event announcement is and how the whole thing works.
The Pokémon Company is split into two: The Pokémon Company itself, which deals with all Japanese events, and TPCi - The Pokémon Company International.
TPCi is in charge of the rest of the world, and generally work with a region's Nintendo branch to get things distributed - in America and Canada, they organise their events with Nintendo of America, in Europe they organise it with Nintendo of Europe, and so on and so forth. This is the primary reason we still see disparity n the minor events - the events that don't involve event-exclusive creatures like Diancie. TPC Japan can get this sort of thing sorted comparatively easily, but for TPCi it becomes incredibly expensive to do so.
What this means is that the process of distributing events is a many-headed hydra, all with their own opinions and timeframes and, most importantly, all completely independent of each other. This means when we read an article from Japan, it only concerns events in Japan. When an event is announced in Europe, it only concerns events in Europe. And so on. Nintendo of Japan won't ever say anything about what will happen in Europe or America, because they simply don't know.
What we
can, do however, is to apply a bit of past knowledge and make an estimated guess. For example, a new event Pokémon headlining a movie has happened half a dozen times before - the most recent example of a movie event is Keldeo. When the Japanese got Keldeo with the release of the fifteenth movie,
Kyurem Vs. the Sword of Justice, we got a physical event announced a few months later. Where I am in Europe, that means TPCi poked Nintendo of Europe, who organised with GAME (and certain continental retailers) to distribute the events. In America and Canada, they did the same with GameStop and EB Games.
This time around, my strong suspicion is that we'll follow the same process, but with a few mechanical differences - the Diancie movie will come out in July, and a month or two later we'll get events announced worldwide for the rest of us. I suspect the turnaround will be faster this time, as Nintendo have (in my opinion) seemingly been trialling a simpler way of distributing critters with the current UK Electabuzz/Magmar distribution - instead of sending out sensitive, specially-manufactured game carts to use as distribution hubs to each individual store, they're sending out stacks of leaflets containing single-use codes.
tl;dr: We're getting the events. We're getting them a couple of months after Japan. We can assume this because there's an established pattern from previous events. We do not make assumptions from what we read in Japanese news releases, because international affairs are entirely independent. No news means no news, it does not mean the sky is falling.
