Was wondering if anyone knew how they would work? What I'm wondering is if I bought a second copy then would I beable to have both pre-order bonus packs loaded into my game? I've already got my collectors edition ordered from Gamestop, but always thinking of getting a copy of the game for my bro... but he doesn't need no pre-order bonuses!

Yes I beleive it has been said that you will be able to have multiple pre-order bonuses.

Will the Pre-order bonuses be available to those of us who do not own a network connection?
Will the items be built into the game?

1. AFAIK, you will need a network connection to recieve the bonus as you will need to download it.
2. No.

damn, so no cheeky console codes will get them for us?

Will the limited edition preorder come with the bonus?

Kinda. You may have to preorder the collector edition so you get a copy. Depends where you live really.

1. What's the limited edition? Do you mean the Collector's Edition, or something else? I'm in the US and we only have the regular copy, and the Collector's Edition which comes with a graphic novel, deck of cards, poker chips, etc.
2. Which bonus are you referring to? Almost all retail stores (both local and online) have a pre-order pack (Classic, Caravan, Mercenary, or Tribal), and so long as you reserve a copy/pre-purchase (in the case of online stores) the game, you'll get the respective pre-order pack. If you're referring to the bonuses included in the Collector's Edition, you'll still have to fill me in with what this limited edition is.