Yes. Devastation will include the promos from its last project (but not Extended Edition or Strikers, the two expansions that were part of that project). Any promos we print for Argent will ship with Kickstarted copies of Argent.
No, we're going to ship from within a facility in the EU. It's still expensive to ship to Europe, but at least you won't have to pay customs tax on all your games. Note that this means you will get your game a month or so later than other backers if you're in the EU.