I noticed that they have Elysian Drop Troops as an Astra Militarum army unit. Is there any hope that they might start adding DKoK as well, or already have? I would love to run a DKoK themed AM deck.

No units yet but you can see them on Imperial Bunker.

http://www.cardgamedb.com/index.php/wh40kconquest/conquest.html/_/core/imperial-bunker-r62

Oh, nice! Thanks for pointing that out.