Well the short term idea is basically to bring back the epicness of dragon battles. This would mean lowing the spawn rate of random dragons and boosting the amount of hp, armor and damage they do as well as evening out the level scaling. Longer term possibilities would include adding dragon types(green dragons, multi element dragon breaths, undead type dragons) and adding reasons to keep fighting them once your shouts are maxed. I have no experience modding at all but i may give it a shot if no one with history modding the game doesn't do this but i think thats really what would need to be done to bring back the fun in fighting dragons.