Referring to your essay outline, I would like to share my thoughts about it.
Sorry to say, your essay seems to portray the technological evolution and progress of the human race. That's not what has been asked in the question. Modernity is a world view and it should have been dealt on ideological and ontological grounds. Per question, one needs to identify Modernity as an idea/ideology and its status in the contemporary world. Has it become "an unending project" ? or is there any possibility of its being evaporated/defeated/deconstructed by any other idea/world-view (existing or new) ? It was a philosophical and theoretical proposition asked in the question. In my opinion, you, unfortunately, could not grasp the core/scope of the question. I hope you would consider my criticism in a positive and constructive manner. Thanks