I don't think anything is dead, it's mainly the people running the show don't understand their consumers. Take for example the recent article about EA executives not wanting to do a WW1 game when DICE pushed it, mainly because not many people were familiar with WW1 and it was going against the norm of the sci-fi shooters going on.
A lot of it has to come down to the people in power not understanding the gaming industry and for the most part playing it safe with everything. Honestly it's why I give props recently to Blizzard and Gearbox for going out of the norm recently with Battleborn and Overwatch.