User blog comment:DragonbornMAGE/Short view on Dwemer disappearance/@comment-5655921-20130101053213

First they didn't make the best weapons, armour and cities, its just that their construction techniques focused on creating sturdy, long lasting items. As for being the most respected race they constantly fought the Chimer and Nords who prefered their own weapons and armour. In asking if they will return I think you need to break the third wall and focus on what the Dwemer were designed to be in the start, an ancient enigma that left its mark on the game world so I doubt they will return.