Have we seen anything in terms of new Primary weapons with Elemental Damage being added with House of Wolves? I can't find any mention of them. Have I just missed them?

I would hope that Prison of Elders would add a new set of elemental primaries. Would be great to get some alternatives to the VoG and CE primary weapons.

Failing that, it would be nice to see elemental damage added to the Iron Banner and/or Trials of Osiris weapons. Something to give non-raiders a chance.

Nothing's been announced, shown or discovered - there were some weapons found in the database that looked unique (I recall a void scout rifle being among them), but they all had Oracle bonus damage perks, meaning they were only placeholders.

Here's an image somebody put together with all of them

They are doing a much better job of keeping some stuff secret this time, for example there is at least one exotic that has only been seen and not given a name or a db page as far as I can see (the fallen sniper rifle that looks almost identical to the Wire Rifle). I'm almost positive we'll have elemental primaries in HoW, they just won't be spotted until the expansion drops (or at earliest tomorrow when they open up some content from the patch).