343 Industries announced at San Diego Comic Con that Zanzibar will be remastered for Halo 2 Anniversary in Halo: The Master Chief Collection. They also revealed a trailer for Halo 2 Anniversary’s cinematics by Blur Studio!
Zanzibar will be one of the 6 re-imagined Halo 2 maps. Zanzibar joins Ascension and Coagulation as the 3 maps confirmed so far. So to clarify, these 3 maps will have 2 playable versions: original in Halo 2 classic multiplayer and remastered in Halo 2 Anniversary multiplayer.