However it was stated that Titan will not be WoW2 or set in the WoW universe. Blizzard stated that it will be a new universe and story, but there are rumors that this is not exactly the case and there will be some connection with previous universes and games, but still different enough.
Furthermore there was a open position for online marketing for project Titan, so it was speculated that the game will have in-game adds of some sort, obviously it won't be like a youtube video where you need to look 10 sec commercials every video because Blizzard tries to not disrupt gameplay as much as possible(that why no captcha against bots in game), so i guess there will be more of future earth or current earth (sci-fi setting of some sort) in order to have adds on billboards,holograms or what not.
The reason i think it will be Sci-fi is because it will be hard to place ads on Cola, Hot pocket or what now in a not sci-fi universe.