From that Legion of the Dead news article:

Aren't those the doors activated by Red Lyrium shards in In Hushed Whispers? Which are also the same kind of door activated by sky shards in Solasan? In fact, that might be a pic of the ice door in Solasan, now that I think of it.
With the dwarves' connection to the Imperium, them influencing a lyrium door lock Alexius uses makes sense. The door to Solasan... more evidence the ancient dwarves and ancient elves were buds, I guess?
That is, indeed, the Solasan ice door. You can see the nature one to the left and the fire one to the right.
Yes and, interestingly enough, I believe it was an ancient elf's tomb, if my memory serves me correctly from the codex entry you get off a wall mural or glyph or some such in there.
I suppose that makes sense, but given their lack of presence I'm not convinced they'd organize their schedule around it.
That and another week of daily Deep Roads/Dwarf/Darkspawn teases is liable to bring me past the brink of sanity.
Oh, honey, you're posting on BSN. That's already clear evidence that you are far past the brink of sanity. 