Just got some info through:

It turns out in Bioshock 2 you will be playing as the first ever Big Daddy, heres the article plus some extra info.

"In Bioshock 2 you will be playing the whole game (we’re almost certain) as a Big Daddy. In fact, it’s not just a Big Daddy, it’s the very first Big Daddy. Nice - and you’ll be able to adopt Little Sisters, too, as well as either killing or saving them.

There’s more stuff listed after the break, taken from the above link. They’re all confirmed as true, but not officially announced yet. Or something. You know what we mean. There’s also what we assume are a few small spoilers, so read at your own risk.

• The game is set 10 years after the first BioShock.
• There will be a multiplayer mode, but no details were given.
• The Big Sister is a grown-up Little Sister, and she’s hunting you.
• Some levels take place on the sea floor outside of Rapture.
• The Big Sister will periodically pop up after you kill enough Big Daddies. Her arrival is apparently signaled by a Little Sister singing a song.
• The Big Sister is described as fast and “the hardest thing in the game.” She’ll utilize telekinesis to throw objects at you or use them as shields.
• Your drill overheats, and cannot be used constantly.
• As a Big Daddy, you’ll be able to do that nifty shoulder bash move.
• Upgrade trees are now more diverse.
• The Incinerate plasmid allows you to throw a fireball or shoot a stream of fire, depending on upgrades.
• Using Incinerate on a Cyclone Trap will result in a flaming trap.
• You can now heal damaged turrets and bots.
• The game will reveal how Adam is recovered from Little Sisters."

Source: ps3vault.com

Looks like they're taking an entirely different approach instead of just doing the same thing with a new story.

So wait... will there be guns in this game? I can't imagine a Big Daddy holding a pistol...

Yer I doubt that too somehow, but perhaps you could just smash people through walls intstead I'd settle for that

I'd imagine you'll have the use of large guns similar to the big daddies in the first game. I'm guessing they'll either go for upgrades or swappable gun types for you to use.

So you'll have drill as melee (plus the shoulder charge) and some guns plus the plasmid powers.

I like the sound of this - I was worried the whole thing would be a re-tread with a bit of polish but this sounds like a more original attempt at a sequel.

Sounds cool... but would that mean you'll walk as slow as a Big Daddy?

badgenome said: Sounds cool... but would that mean you'll walk as slow as a Big Daddy?

They were fast enough when they wanted to be.

@red,

How can the game be 10 years after the first Bioshock if you're playing as the first Big Daddy?

I'll tell you a little secret!

Rapture's citizens and infrastructure all went kabooem in 1959. In the first game you played in 1967. 10 years after is 1977. So basically, it makes total sense. People live longer then 2 decades you know! Yeeeaaah, it's true! It's one of the best kept secrets of this world XD.

That still doesn't explain how you kill Big Daddy's in 1967 and then play as "the first Big Daddy ever" in 1977 when rapture was collapsing around you at the end of the game.

Mabye he was on vacation...^_^