From IGN's most recent podcast: 

Matt: "Kid Icarus, I'm quite sure, is going to look stunning in every way known to man, and I've got really high hopes of it playing just as well as it looks."
Bozon: "You're just going to confirm the developer straight up aren't you?"
Matt: "I expect to hear a lot about Kid Icarus at E3."

Someone else I was talking to was pretty sure they mean Factor 5, especially with the graphics comment. I figured them or Retro. What do you guys think?

I doubt it's Factor 4.5, Matt said he hopes it plays as well as it looks...

Bad jokes aside, yea it's pretty much either F5 or Retro at this point. Good to hear that we'll get some major info at E3.

Those are reasonable guesses. I would prefer Retro to do this game. Hopefully they can do for Kid Icarus, what they did for Metroid.

It's just the way he stressed the looks part is basically exactly the way he talked about Factor 5's unnamed project in the past.  After that comment I believe Factor 5 is more likely than anyone else.

Also, be fair to the guys.  Lair was rushed out by Sony, and there was a time when Factor 5 made many consistently high-quality games. 

Retro if you ask me, but that's because I want factor 5 to be on a different game.

Matt is wrong. NO Wii game can look stunning, in any way. It's just not in the hardware.

All sarcasm aside, I think everyone is expecting it to be Factor5. I wonder if they will use Pit that looks like in Brawl. Or a more mature one.

There was a time when Enron was the model of a successful company too.

Still, we'll see what happens.  I think many gamers are going to regard Factor 5 with some degree of skepticism, but the game defines the company, not the other way around.  Here's to hoping for the best.

 They better not use his voice though since I hated it in brawl so much!

Ontopic I feel Factor5 would be the best bet they have had amazing games if not them then Retro since what they have done with the metriod name! 

confirmed: Factor 5

i mean, come on! Thats what they're known for
even though, arguably, Lair was horrible (imho)
it had some amazing graphics!
im not expecting the same for the Wii
but i trust these guys w/ ninty property

either that or retro
:)

 As long as Pit doesn't sound like he did in Brawl, I'll be a happy man.