Magnus from kid icarus uprising is such a shoe in for the next smash, even more then Palutena
You mean the guy who makes a total of three appearances the entire game (one of which is extremely minor), has next to no storyline importance, and has an arsenal of seen moves that consist of "hit shit with sword in exactly two different fashions?" He's extremely low on the rung compared to the other Kid Icarus characters, not even including Palutena.
(I'd almost say he's even less likely than Viridi, who isn't ever actually seen doing anything in Uprising)
I'd say he's not even interesting enough to be an Assist Trophy--there are more than enough of them that do nothing but chase and attack and I couldn't see a Magnus assist doing much more than that.
No way Sakurai is going to pass up the opportunity to pump this game full of Kid Icarus characters. Palutena will be there for sure, and maybe one more KI character.
While I don't doubt that there will be at least one more playable Kid Icarus character, saying he will pump the game full of Kid Icarus characters lacks some evidence that he's wont to do so with characters of his own--remember that Kirby (the series of his own creation) went
three games before getting more than one character, despite the facts that a second was planned for the
first game and that it's certainly a popular enough series that it should have gotten a second in Melee. The only place Smash seems to favor anything of Sakurai's is plot significance in the Subspace Emissary, which wasn't even written by Sakurai.
Near as I can tell, Sakurai's supposed bias towards representing things from his own series when it comes to Smash is greatly exaggerated if not practically nonexistant.