According to the official website, the Blu-ray and the DVD of Rurouni Kenshin: Shin Kyoto Hen
Part 1 will be released on March 21st and is 45 minutes long. The second part will be premiered next summer.
Trailer of Rurouni Kenshin New Kyoto Arc
Screenshots and the character designs
The trailer of the Rurouni Kenshin live action film was also released by Warner Bros. It will be premiered on August 25th 2012.
Trailer on Warner Bros. Channel
Trailer on Youtube