I like that they're bringing back some older stuff. However, I'm not all that familiar with the older stuff, so I don't want to see any guest appearances for the sake of guest appearances. They should be able to do something. (For instance, I was unfamiliar with the Shadow Proclamation, so I hope they have something to do with the next episode.)
I want to see Brigadier Sir Alistair Gordon Lethbridge-Stewart.