Super Smash Bros. Brawl/Stages

Some of the things on this page are currently opinions, not facts.

Halberd
The Halberd, Meta Knight's battleship, is one of the few levels that Nintendo has actually confirmed. The level has the players battling on a floating platform in front of the Halberd.

Pokémon Stadium
This is another "confirmed" level by Nintendo. The Pokémon stadium is very similar to the Super Smash Bros. Melee level. While the background has been changed a bit, it still has two small floating platforms over the giant Pokéball.

Kid Icarus
On the newest Nintendo video on Super Smash Bros. Dojo, it shows the characters fighting on a level in the sky. This looks very similar to what they would probably make into a Kid Icarus level.

Yoshi's Island
The Yoshi's Island stage has players battling on a stage that changes seasons. This stage is not yet confirmed.

Mario Kart
The Mario Kart level is a lot like the Mute City level from Super Smash Bros. Melee. It involves characters flying over a race track and doging Shy-Guys  driving Go-karts. This level has been confirmed, but may change later in the development of the game.