Unicron.com has posted an article stating that Larry DiTillo and Bob Foward will be writing an episode of Transformers Animated for series 3, which they report will start next Spring.
Bob and Larry wrote many episodes of the fan favourite Beast Wars series, so it is no surprise that the episode is being called "A treat for all Beast Wars fans".
The news of the Spring release goes against previous rumours that YTV will be showing series 3 later this year.