Yes, the following trailer is fan made, but it is by far the best I’ve seen… very convincing.

Of course they could have done better, especially with the introduction of the characters (they only said Yun Fat Chow as Master Roshi, the others only had the actors names, not who they’re playing). But I am sure once the official trailer releases, we will see brand new photos of the characters, not photos shown in magazines and such from the past.