If it is indeed a "simultaneous" worldwide release, there may nevertheless be some weeks difference with the release in Germany.
Here in Belgium (and also Netherlands, Luxembourg and maybe Denmark), we don't have to wait a year for German releases (these countries are also considered "home-market" by Geobra).
But there usually is a 1-month delay (certainly on the local official websites), though some shops release new sets a bit earlier if they already have stock.
So, if the suprise bags are to be officially available "worldwide at the same time", they should show up in stores outside Germany in a few weeks time.