Had a bit of a discussion with Lorenzen about what we might. Eventually (no doubt in many years time). See for the blood angels in terms of unique units for gaming with.
World eaters have their rampagers
Emperors children have their palatine blades
Death guard have the death shrowd
Sons of horus have the justarean
Lorenzen reckons it might be a HH version of the sanguinary guard, which could be cool, but as games workshop already have both rules and miniatures for these I wasn't so sure, perhaps Amits company? Maybe even something akin to death company, depending on what book the BAs end up in (I really hope to see them before terra...)
Edited due to tablet auto correcting...
Edited by Blindhamster, 30 April 2013 - 12:32 AM.