If they do their own event, we should know about it this month, because the invitation are going to be sent out to the press a month in advance.
Now if they do a reveal at an already existing event.
Gamescom in August
EGX in september
And that's pretty much it. There is the PGW in November in france, but it's waaaayy too late.
They could also just do a direct but that would never get as much press as a real event. They need to show it directly to the press, and make them play it.
Also, from what we heard about the device, it really has been tailored for the japanese market. So I think it will be in japan.
So my guess is still a private event in japan, at the same time as the TGS. If it's that, we should have a confirmation in the next two weeks







