Sorry folks, gotta put my two cents in regarding these "rumors."
-Sakurai wants to focus more on characters this time, and less on the extra fluff, though he still wants there to be plenty of extra content.
Wrong on every word. Although Sakurai will work on the characters, it won't be his primary goal.
-Some of the assist trophy characters will become full characters, however Lucario will not be returning. Mewtwo is also out of the question, as are the Melee clones. It's also a possibility that some characters who were starters in Brawl will become unlockable in 4, much like Falcon and Ness from Melee to Brawl.
This may be true in some areas, as no one (except me) liked the Melee clones. AT's (i.e. Little Mac, Isaac, or Saki) may be upped to full playability, and fans would like to see the new Pokemon generation be represented. The Mewtwo bit is indeed false; he was original and should return. The part about Brawl starters being unlockable is also possible; Sakurai will no doubt want to showcase many newcomers early.
-Main control scheme will be Classic Controller, as the Wii U is not compatible with Gamecube tech. The tablet controller won't be for controlling characters, but there will be a use for it.
I don't know much about the Wii U right now, but this basically says you can't play the game at all. Totally wrong!
-Pokemon Trainer may get new pokemon. Another Pokemon Trainer character is "Highly unlikely"
Even though I hear people say that there's too many playable 1st gen Pokemon, the first part won't happen. I do agree with the 2nd part; one trainer is enough.
-No new characters for "heavily populated" series, more focus will be put on series that need more characters. Star Fox series is "A notable exception" to the rule for some reason...
Wait, what? I understand the 1st half, but the Star Fox bit...?
-No more Pikmin characters. Feels that Olimar is "suitable representation"
I do agree; to be honest, I didn't expect Olimar to show up at all.
-No more F-Zero characters, as Falcon had to have a lot of work done to become a character, and is the "face" of F-Zero. Having other characters would detract from this...
Oh, that is absolute BS!
-No more Mother characters, as the series is still mainly a Japan exclusive. Lucas and Ness represent the major titles effectively.
Agreed, and most likely true.
-No more Donkey Kong characters, though Donkey Kong assist trophies are in high demand, and at least three new assist trophies are planned, including one from Diddy Kong Racing, which will be represented better in Smash 4.
Expect hate mail from fans on this one, if it happens. Although I can see the AT bit happening.
-No more characters for the Yoshi and Wario series.
Why was this brought up? Yoshi and Wario are the sole reps for their respective games, anyway. (Although if the last bit becomes true, I can kiss Ashley good-bye.)
-No more Zelda characters; if Tingle were to become a character(NOT confirmed), he would get his own series icon and be the sole representative.
They'll consider more Zelda characters; in the form of playable, however, is uncertain. NO TINGLE!!
-No more Kirby characters.
True to the core. You have your main guys; who else is left to consider?
-Kid Icarus will be receiving a major overhaul. Expect at least one new character, several assist trophies, and a new stage alongside the one from Brawl.
Kid Icarus is already getting a major overhaul with the upcoming release of "Uprising." The new stage part could still happen, though.
-For Metroid, there will be one new character added. One that fans requested, and was thought to be an impossible addition, but the team have found a way to add them to the game, though it won't be a perfect transition.
OK, this is just a cheap way to assure the fans that Ridley's going to be playable. I'm sorry, but I'm saying it again: It's not going to happen. It cannot work.
-Alternate costumes for characters other than Wario are "being looked into", still nothing concrete.
This has a good chance of being true. Dr. Mario still has a chance of making a comeback, even if it's just as a costume.
-No more Fire Emblem characters. Marth represents the old, while Ike represents the new. Fire Emblem is still going to receive extra attention to other details however, including at least two new assist trophies.
This also may be true, as no new FE games are reportedly on the way. However, if the AT portion turns out to be true, Roy still has a chance to return.
-If a Third Party character has appeared in Smash, they are not likely to leave. In the case of Sonic, his reception was met positively, so SEGA has decided to give the development team free liberty to add him as a playable character. There won't be more than one character per company however. For example, if Capcom allowed the team to use both Ryu and Mega Man, they could only choose one.
Although fake, it seems legit. And which one WOULD they choose?
-In addition to new stages, there will be a selection of classic stages from all 3 previous Smash titles. One in particular from the original was "missed dearly by the fans".
This would be a good idea to pursue, if it turns out to be true. Hmm.... what stage was that?
-Mario will incorporate a new move from the Galaxy series, and the Galaxy series will be represented proper in Smash 4. Galaxy wasn't represented in Brawl due to not having substantial content to work with, but now there is "plenty of content to derive from the Galaxy series, especially with two distinct titles".
Hmm... it's not too far-fetched. It could happen.