I'm almost certain that we won't get an english version, unless we wait for a disc release or the localised version is actually dual (my only hope) because I don't think there are any other instances of the same DLC available in different languages in the Xbox market and that's because Microsoft wants to keep it simple and knows that many people would just get confused if they are presented with too many options.
I've made my mind up, I won't get the DLC if it's only in spanish, even if I had been looking forward to playing it since it was revealed, translations are so poor that it's simply not worth it.
Yeah, reading all these posts opened my eyes, I didn't really understand how stern the region lock is on xBox Live. I buy a lot of DVDs and I'm aware of it there, but this just caught me off-guard. Looking at how this scenario usually ends with other games, I guess our chances are slim. I just regret now that I wasn't aware of this before, so I wouldn't have wasted my money on a game that won't be able to properly install upcoming DLCs and microsoft points that I don't really need now.
Seriously, realizing this now, I kind of had it coming, should have gone with the PC edition.