You've got some time before you need to release the figs for Ep. 3. Here are just a few suggestions that might help us all be happy. You will make a lot of money and we, the collectors will get the figures that we want.
1. Wookiees and clonetroopers: make lots of them, release them in the first waves.
2. Senators and other govt. officials, and people with non-speaking/non-action parts: hold off on these a bit, make fewer of them and they will sell well.
3. Obi-Wan and Anakin: make good sculpts of the first waves
4. Assortments: here is a good case breakdown (assuming 12)
4x clone trooper (super articulated we hope)
1x Jar Jar
1x background Senator that does not speak
That way there won't be so many pegwarmers and the least desired characters will become the figs that you could never sell, but now everyone is goung crazy to get them.