Yes, there is chance of development of nutrient pills. It might provide you all nutrients like fats, proteins, carbohydrates etc.. but these supplements are not good for your health. These products actually can make people ill.
Replacing food with these pills is possible. These supplements will provide you every nutrient for your body. But synthetic supplements have its own side effects. Pills cannot replace other aesthetic value natural food.
In a single sentence, pills cannot replace natural food. Pills will provide you only particular nutrient which provide you instant energy but natural food may contain other essential components for staying healthy.