I'd like to see the following features:
- Possibility to choose different flags (such as the Blue British Ensign or the Spanish Cross of Burgundy, i.e.)
- More animations
- More detailed open world
- Paint jobs and other small details in the ships
- Better boardings, the actual system of combat is awful
- Some kind of "Captains view" in the ships (In combat and open wold), for better inmersion in the game.