Kodak announced on the 6th April 2010 that they are releasing Ektachrome 100D for Super 8.
From the Kodak announcement:
KODAK has introduced a new Color Reversal Film available in the Super 8 mm format today. KODAK Ektachrome 100D Color Reversal Film is a daylight-balanced 100-speed film, incorporating bright saturated colors and fine grain with excellent sharpness.
The full announcement is available to read here.
Both Wittner Cinetec and Pro8 have been packaging Ektachrome 100D into super 8 carts for a while now, so this film stock is not new to Super 8 but hopefully with the Kodak release it should become slightly cheaper and easier to obtain.
Kodak have also announced that they are discontinuing both Plus-X and Etachrome 64T.
For more information on Kodak’s Super 8 film stocks visit the Kodak Super 8 website http://www.kodak.com/go/super8.