I finally cracked my sets open today to photograph and noticed that all the clones have different style "backpacks". The best in my opinion being the one on crouching clone mold. A nice touch to add even more variety to the ranks of the 'troopers.
I've had nothing but excellent luck/service from EE.
As far as New Force goes I know someone from here ordered the last wave that was available and they stated that they would receive the shocktrooper and the green clone commander but when the buyer received it had the plain #6 and red Clone commander. So… I'd stick with EE if I were you.
It's a pretty safe bet but there might not be actual figure changes though. Sometimes it's just a change in the bubble tray (i.e. the change in position of an accessory or how the fig is secured in said bubble).