I remember a website that was saying GOWJ a limited Ed. would come with a token to download GOW 1. but there has been no official news of any thing being offered but the standard Ed. of the game. So take it for what it's worth.
There were foreign (outside the USA, anyway) places that were offering their own limited editions, that were store made. Some of these talked about having exclusive content offered, including a free downloadable copy of Gears of War, along with some more interesting things.
At least one store mentioned their limited edition would come with a chapter for Baird and Cole explaining what they were doing during Gears of War 3, but it would not require 3 to play it. Seems like it's (withheld) content to be sold later. Also, this site had also mentioned something about limited time exclusive content of a 30 day and 60 day DLC. It seems like the 30 day is the Hammerburst, as there's no way they'd not allow a whole weapon to be locked away from the community. The 60 day content seems like the character skins. They probably won't do variations this time, as the game isn't nearly as popular in the pre-order situation. I posted this in the sale thread, but Gears of War Judgment hasn't even cracked over 100,000 pre-orders yet. By this point, Gears of War 3 had over 1 million pre-orders.
Noting that, don't expect much support for this game, as we saw how quickly they've seemed to forget about 3 after all the DLC was released.
And there's supposed to be a mode called Overwhelm or Overcome, that is the pseudo replacement for Horde Mode. Essentially you just fight endless enemies, trying to survive as long as possible. You time is tallied and that's the end of the game, when everyone dies. No other information seems to be available. And, of course, none of this information has come directly from Epic. Still wonder when the hell they're going to start letting people know about this game.
All that's known is that there are 4 'competitive' modes, with the potential for a 5th that would be a sort of weekly, rotational playlist. 3 of the 4 modes are almost the exact same, involving just killing the other team or players. There are no linger shared lives, just infinite lives with teams or individuals playing to a set score.
They still haven't talked about whether there is local play.