As far as I Can tell you only get one (the one being the blood dragon plate armor) of the promo DLC items with the steam version instead of all of them. Apparently you are supposed to get the key from the steam version and put it in EA's origin launcher to link the game and get the promotional items, but that is no longer possible because Steam

While it's great to enjoy the best of Dragon Age's combat and storytelling in more compact form, it's an unsatisfying meal for the money. But here's the thing with Dragon Age DLC - you get dessert

The problem here is that Steam and EA had a fallout, related to distribution of Dragon Age II DLCs. EA pulled DA II from Steam after that. They later closed Bioware Social site (which they bought) and shut down services. Steam is working with license they have.

What you do with alistair affect his cameo in DA2. Siding with behlen/harrowmont also gives you a side quest in DA2, lelianna and zevran can also make an appearance too, and yuo get extra dialogue between isabela/zevran or isabela/alistair dependng what happens at the pearl
A user asks how to integrate the downloadable content (DLCs) of Dragon Age: Origins - Ultimate Edition into the game and the story. Other users reply with a list of DLCs and their order, and some tips on how to play them. The DLCs are Leliana's Song, Golem of Honnleath, Soldier's Peak, Return to Ostagar, Darkspawn Chronicles, Witch Hunt, and Golems of Amgarrak.
For whatever reason the game hadn't saved the product key at all so everything was unauthorized. If not, go into the addins.xml in the Documents/Bioware/Dragon Age/Settings and change your DLC from Requires Authorization=1 to Requires Authorization=0. But yeah, the servers are s*** by now and are going largely ignored. eeak21. 23 368 92 819 207 826 316 549

dragon age origins when to do dlc