And the winner is...

Ze spehs Germans!

Personally I would like to see Praetorians cause thats what I collect and they are really cheesey but unlikely. By the screenies it looks like Cadians or at least standard Cadian pattern armour and lasguns and I reckon thats the most likely 'cept they may be named something like Sanctum PDF

I said other because I don't think it should be just one unit. I think there needs to be PDF, Arbites, a huge detachment of Cadians, A small detachment of Steel Legion, and maybe a penal legion.

Said other cause I don't know anything about IG.

Death Korps, cause out of all of the regiments, its the coolest sounding one!

I think we can readily assume that the developers will not know/be honest enough to the lore to even consider that there will be multiple Imperial Gaurd regiments and arbites and PDF and all that.

I would bet on there just being one regiment of cadians EVERYWHERE. That and if other games are anything to go by, they will be massacred on a daily basis.

If you've watched any of the interviews, then you'd know that they're working closely with Gamesworkshop and they've read alot of lore. THEY HAD TO. They're picking Cadians because it's the simplest uniform and one that all the not so much fans, the ones that don't know all the other regiments, know from the DOW games.

I believe developers also worked closely with GW when creating War:AoR. They also knew quite a lot about lore. From what I've heard though fans werent happy about the lore in that game.

I just dont think theres enough reason to put it alot of effort with so many specifics. Everyone understands the lore differently anyway, so your not going to make everyone happy.