One Deus Ex: Human Revolution mission centred around an old friend from the Deus Ex universe, Tracer Tong, was locked off in pre-order DLC (and later sold seperately). It was a bit of a gross move. Apparently not learning from their mistakes – a pretty Deus Ex-y theme, to be fair – publishers Square Enix have announced all the pre-order guff for Deus Ex: Mankind Divided [official site].
It’s a big mess, of course, and includes the unpleasant step of saying they’ll release the game four days early if enough people pre-order. How about we not pre-order games any more and Squeenix simply release it when it’s ready, eh?