All Deus EX: Mankind Divided pre-order bait is now included in the base game
Square Enix announced today that all pre-order content for Deus Ex: Mankind Divided is now free for all players.
This move makes the Desperate Measures bonus mission, some weapon and character skins free to all players, instead of just those who pre-ordered the game. The now unlocked content will be available to all players next time they launch the game, after a short update. Digital art-books, comics and novellas which were previously part of the pre-order deal are now also available to everyone with an internet connection via Square Enix's (~230mb download).
Steam
"What sense did it make to pre-order the game in the firs place then?", you ask. Well, as with all pre-orders, absolutely none. Other than maybe getting the game and extra content a bit earlier.