The final trailer before Smash is released:
A raging blizzard covers a world in snow as the Ice Climbers struggle to climb a tall and arduous mountain. They have never scaled so tall a mountain before in all their years and they grow worried that they'll never reach the top of the mountain. They look around and can see nothing but grey and white snow all around them. Eventually, they reach the top triumphantly! The blizzard finally quells as they hope to have a better view but all around them is covered in snow and ice. Suddenly, they look west and notice the sun rising up! Only it isn't any ordinary sun, it's the Smash symbol flaming bright! It reaches its peak quickly and soon begins to melt the ice and snow all around them, the Ice Climbers sweltering in the newfound heat. Soon the ground beneath them begins to crumble quickly and they fall down a bit before landing on solid ground! They put themselves together and shake off the dust before they look around as the ice and snow melts to reveal Spiral Mountain! Gruntilda's Lair, the waterfall, and the vegetables all melt and come into view as they look around. Nana soon points out to Popo a small blue house in the distance, which then zooms in to the door which flings open to Banjo and Kazooie wearily waking from their hibernation before looking up at the sun to see the Smash symbol! They realize they've been invited to the competition and strike a pose with their splash screen saying Banjo & Kazooie come out of hibernation! Gameplay footage ensues showcasing their moves and techniques from Banjo-Kazooie and Tooie with them fighting against Mario, Sonic, Mega Man, Pac-Man, Duck Hunt Duo, Ice Climbers, Donkey Kong, Diddy Kong, King K. Rool, Princess Peach, etc. before showcasing their stage Spiral Mountain which travels to various parts of the hub world before fighting on top of Gruntilda's Lair with Gruntilda waiting to taunt the players! They then reveal their Final Smash with Mumbo Jumbo & Humba Wumba teaming up to transform them quickly into Daddy T. Rex before rampaging across the stage and roaring sending their opponents flying!
My buddy came up with the idea of them coming out of hibernation and I lost my **** over how cool a reveal that would be haha