Steve Carell gave The Golden Girls stars Bea Arthur, Rue McClanahan and Betty White the Pop Culture Award. Ed Asner and William Shatner in turn presented Carell and the rest of the Office crew with the Future Classic Award.
There is no word yet on what his role will be, but if you aren't familiar with Aziz, he's from MTV's sketch comedy show, Human Giant. This article also states that it's unlikely anyone from The Office will be leaving the cast for the spinoff.