I wish they'd gone one step further with the Banjo reveal:
The beginning of the trailer is the same. Jiggy goes across the screen. Looking out the window and seeing the Banjo-Kazooie silhouette. The silhouette turns out to be Duck Hunt, trolling us when suddenly *flash*. The dog's face is blackened like in the arcade game when you shoot him while he's laughing at you.
In steps Master Chief slowly walks in, Cortana playing and advising him to blow up bananas for whatever reason. Splat. Classic Smash splash shot of Master Chief and gameplay is shown.
Back to the cinematic, Master Chief is on the horizon while Donkey Kong mourns his bananas. A paw taps him on the shoulder and "Ga-ha" it's Banjo. Smash splash shot of Banjo-Kazooie before he takes out his banjo and, with the aid of Tooty, Kazooie, and Mumbo Jumbo wearing a giant afro and leisure suit as they start to recreate the intro to Banjo-Kazooie, but transition to the DK rap (with Diddy's help on guitar) as Donkey Kong and King K. Rool look on in confusion, gameplay runs. Finish the cinematic with a flurry from Banjo on his banjo just like his original intro.
There ya go.