Here's War with some more updates:
# PLAYABLE STAGES:Battlefield, Battleship Halbred, Norfair, Hyrule Temple, Onett, WarioWare, PictoChat, Bridge of Eldin, Delfino Plaza, Yoshi's Story, Smashville, Castle Seige, Pokemon Stadium 2, Skyworld, Lylat Cruise
# Dragoon was seen as an item. There are also a few new items such as a time bomb and spike bomb.
# Classic Controller and Wiimote are available controller choices.
# Meta Knight: No strong attacks. He's the kind of character that relies on multiple hits. FS is very strong and has a wide hitbox. Not much use for gliding. Taunt: Flaps his wings and does a "warp" or some sort.
# Diddy Kong: He's very fast and can "put hurt on you." He has combo attacks, similar to Meta Knight.
# NO MORE DELAYS: According to someone to who asked a Nintendo rep there: Brawl is confirmed to be released on the 24th. (Japan)
# Pokemon Trainer disappears on certain stages. He was not present on Delfino Plaza.
# New Pokemon: Shaymin
# UNCONFIRMED: Pokemon trainer's starting appearance is him running to a stop and taunting.
# Item Selection is ON. Smash Balls can be turned off.
# King Dedede has a pink costume.
# Dedede is a heavy, slow, powerful character. He has 4 mid-air jumps (5 total jumps). His Waddle Dee throwing attack is weak. His Up Special has good knockback.
# Dedede's starting appearance is the Waddle Dee Shrine seen on the Dojo.
# Pokemon Trainer and King Dedede Playable! They appear as "Dedede" and "P. Trainer"
# Confirmed: The Brawl game available is a demo, however, it is a new one.
# Confirmed: Photography IS allowed, but only in certain areas.
This info is all from Whobby 2008, some sort of gaming convention?
Also, a blurry screenshot, but it shows an AWESOME alternate color for Metaknight that makes me wish I had the game in my hands right NAO.
Source: brawlcentral.com