It would be cool if we could see the Blades of Crota out in the wild again. Yes, I know there's continuity issues, but gameplay-wise it would be fun to have the Blades again to make patrols more lively.
Edit: Let's hope DeeJ and the people at Bungie see this! =D
-
Lol watch them make a mistake and now the blades have scorch cannons. I would be like: THE -blam!-