Brett J. Gilbert
Professor Evil and the Citadel of Time — Funforge / Passport Games
Hey Brian, thanks for the questions...
1) Do we remove the base copies of the matching cards when inserting the new alternate art promo cards?
Yes. The promo cards are designed to replace their counterparts in each of the decks.
2) The rulebook states on pg 5 "It is forbidden for any player to have two identical cards (with the same illustration) in their DOMAIN." Does this mean that you can now have TWO identical domain cards as long as 1 is an alternate art version?
You've discovered a little loophole, there.
However, in the case of 6 of the 8 promo cards (the Level 3 cards), there is no hole for the loop to go through, since they replace unique cards. In the other two cases (Hades and Hephaestus) the spirit of the rule (if not the letter!) means that you should continue to never have two functionally identical cards in your Domain, even if their illustrations differ.