I think Ike is going to be awesome in the game, and I think that the presentation of Ike in the game as a playable character means the
Super Smash Bros Melee characters representing
Fire Emblem are being replaced. Could be wrong, though. We don't know the actual details of who's in and who may be thrown out. There are also rumors going around that several SEGA characters may well make their appearance, like NiGHTS or Sonic.
As for interesting news, a random, has-never-made-an-appearance
Fire Emblem castle is going to be a multi-stage (non-scrolling) arena in the game. Apparently, the floor breaks from underneath you after a few rounds of fighting. They're revealed the roof top and first floor or two, but it's been revealed that there is a basement. They just haven't shown it to us yet.
The Adventure Mode looks interesting, titled
The Subspace Emissary. The screenshots also semi-confirm Princess Peach making her reappearance in the game.
Though, her official announcement hasn't been made yet.
The Assist Trophies containing characters such as Knuckle Joe, Dr. Wright, and Samurai Goroh are going to be an interesting mix with the Pokeballs already a staple; though, they've only confirmed Groudon and Deoxys.
I like the names and control schemes. It means a lot of people with experiment with different options, and a lot of people with stick to their ways.
The characters. The stages. This game is going to be great, and I already have it pre-ordered ^_^ I can't wait until my birthday.