It seems that model kit company Kotobukiya is releasing 4 new characters in their FFX Monster Action Figures" collection- Anima, Ultima Weapon, Varna, and Iron Giant.
I heard that they're limited to 1500 productions per each figure, which might be possibly just be about enough, considering that they're not mainstream characters.
On a side note, I didn't know that there's another Tifa figure already on sale. Sure shows the popularity of Final fantasy VII, despite being a title 5 years old now. -H. Moriarty