Okay, I know this is way to early to talk about but I was wondering, What do you think they will include in the collectors edition? 
Will there be on to buy or only if you win a contest like the second one? 
And what are the odds of it including Drake's Head like how did they it for Halo 3 and Killzone 3?

It was the dagger for UC2 and the journal for UC1, so I'd expect it'd be whatever maguffin or artefact plays a critical role in UC3. 

" Okay, I know this is way to early to talk about but I was wondering, What do you think they will include in the collectors edition?  Will there be on to buy or only if you win a contest like the second one?  And what are the odds of it including Drake's Head like how did they it for Halo 3 and Killzone 3? "

A hugeass Drake head would be the creepiest thing ever.

My very-own life size and life-like Elena Fisher... Hell, just wrap up Emily Rose and send her my way.

A bag of sand.

Chloe's ass.

" Chloe's ass. "

I wasn't a fan of the contest only collectors edition.  While it made it very rare, it also kept it out of the reach of most of the community, which makes it rather pointless.  If anything they should just do the regular metal case with a few bits of extra content.. and then a much more expensive version that comes with all sorts of tat for the serious fans, similar to what Halo and CoD, etc, do.
 
But I won't speculate on what the contents might be, because Sony tend to suck with collectors edition and in the off chance we do see a good one, like say, LBP2's, we won't get it in Europe anyway.

Just send me Emily Rose, please.

A bag of sand.

Everything I wanted from the UC2 collectors edition was released as DLC at a later date.