I got info from a friend (who I have good reason to believe) who got info he wasn't supposed to get. I really don't know if he's BSing me or not. When looking for a place to share it I just searched "Smash Bros 4 leak thread" and got here. May use the website in the future because competitive smash is cool. I'm on an ipad in an airport so the post might seem messy.
Newcomers my friend does know of:
Palutena (girl from Pit's final smash)
Pac man
Mewtwo is back
Dude who was kind of in Nintendo Land game (I don't know what he means by this)
Toad (Has some sort of clothing to make him more distinguishable from Peach's move)
The Mii (he mentioned that an idea was passed around that if you play on a 3DS, you can send your friend's profile Mii to the game to play as (new costume), and then send those miis to the Wii U version.)
Paper Mario
Tom Nook (apparently wasnt considered until someone looked at the Villager reveal, and wanted to expand on how Nook looked at the invitation.) (Has interesting playstyle that may be a lot like the Villager's, think Fox to Falco, but will use furniture and bells in contrast to how the Villager uses outdoor items and tools)
Some dude from Xenoblade (We both never played it so would not know)
Ridley/Meta Ridley. (One is a stage hazard one isnt. He didnt elaborate on which is which)
Hawklucha the pokemon is being considered due to some role in a future pokemon fighting game we both have never heard of
Some Zelda Character that he did not know. I would know because i play Zelda, he does not unfortunately.
The Waddle Dee with a headband. (Very similar to Little Mac but no the same moveset, just a close range playstyle. Funny character. Up B is riding a warp star in a whatever direction you point until the star "disintegrates" into tiny stars
That is probably not all the new guys because he does not think he saw all of them but he very well might of.
Sakurai (Japanese guy making the game) wants to make the game cater more to Western fans rather than Japanese due to a lot of Japanese characters being unrecognizable by kids in America. Wants very recognizable characters from the most popular franchises with an occasional curveball. Id assume the Japanese recognizable characters would be assist trophies.
Has no clue when anything will be announced. Says there was no reason to give any employee info on what will be revealed for "Pic of the day" or "Nintendo Directs" and only people high up on the corporate ladder know.
DLC is already being worked on despite other reports. First big idea is more pieces for stage builder, and eventually releasing some Wii U stages for 3DS and vice versa. Nintendo will use Smash 4's DLC characters (most will be free) as an opportunity to promote other games for the lifespan of Wii U and 3DS. For example, say a new IP is released in 2016 that Nintendo wants to sell a lot of copies of, because Smash will be bought by almost every owner of either console, releasing a character from that game will boost sales.
I'll update again later with some more info on items and stages and a couple veteran roster changes. If this is not the right place to post this then redirect me, I assumed it was due to the thread's title.