Germany has had 4 different 'Waves' of Blind Bag Ponies (Bags Pictured Below). While the USA has only JUST begun to see a second wave in local stores. The problem is, Hasbro seems to have skipped a release in getting them to USA stores.
As evident from the picture, Wave 2 and 3 look very similar from the outside. But the ponies released are completely different from one release to the other. (For full Blind Bag pictures and details of the two waves, look here Wave 2 and Wave 3 ). The biggest difference inside the bag, is that the Wave 2 ponies had cards identical to the first wave, and had all the same molds. While Wave 3 had purple cards and included Colts.
The disappointing truth is that the Wave 2 Blind Bags are no longer in stores in Europe, and haven't been since May. If Hasbro does plan to 'skip' sending this wave to the USA then American collectors will miss out of Blind Bags of Cheerliee, Blossomforth, Feathermay, Snowcatcher, Daisy Dreams to name a few, and the original glitter forms of Rarity, Applejack, and Fluttershy. I'm holding out hope that perhaps they'll be released someday, perhaps as a later wave.
But for now, as far as all the toy stores are concerned, Wave 2 USA is the same as the EUR Wave 3. So if you already spent the money to get the Wave 3's online, don't be fooled into buying the 'NEW' USA Wave 2.
Since my site is about the complete collection of the Pony Blind Bags, I will continue to use the European designations first. Hope that's cleared up the confusion!
Here's hoping this means we'll be seeing Wave 5, with the new Celestia Blind Bag figure, coming out soon!