I think it would be a massive quality of life improvement if the Dragon Hunt daily quests in Northern and Southern Elsweyr were reduced from requiring three dragon kills to one. A similar reduction happened to Harrowstorms, which was welcomed, but Dragon Hunts have remained unchanged. Newer incursions, such as Volcanic Vents, also only require one completion for their respective daily quests, so Dragon Hunts, the hardest incursion, really sticks out.
I also find it rather painful to complete in its current state. Outside of an event focusing on Elsweyr, it's unlikely that I stumble across other players fighting dragons. While I can just about solo Harrowstorms, dragons are much tougher to attempt solo and take more time. Then you have to do three of them...