You can play thtough a lot of their Wolfenstein games without big shootouts, if you play stealthily, so I wouldn't be surprised if this game took a classic Indy point and click approach and made full on combat completely optional, providing sneaking, puzzling or other ways past encounters, or at least heavily reduce the forces you'll have to face by using your head.
Mind you that is my hope for the game, but I don't know what they'll do. The potential is there, but they also seem to focus a lot on the action setpieces in this game.