There's two more (technically three more, but the '94 Shadow Ninja was just a colour change variant of the previous Ninja Force mold) from the old ARAH not yet reproduced in the new line.
If you're asking if those are the only Snake-Eyes figures from the 25th Anniversary line so far? Well, you're something like ten off....
http://www.yojoe.com/action/08/http://www.yojoe.com/action/07/There's a two tone one in green pants that came in a TRU 5 pack with Red Ninjas to gank, three comic pack figures including a uniquely battle damaged one and a 'early ninja training' one, two different DVD pack ones, a single pack Arctic version... and AT LEAST two more on the way.