Why is 6 afraid of 7? Because Bungie kicks ass.
IMO, a Halo movie was at the top of the wish list for many Halo players for years. A TV series was a close second. Now that Destiny is seemingly moving forward in terms of production, would you like to see any Destiny themed media other than a video game after its release(Cinema, novel, etc)?
I'd imagine the game's genre in it of itself dictates possibilities, however a spin off in the same canonical universe would of course be plausible.