Nice, but what is really new?

I have the Ascaron games Patrician bought 2 (+ add-on), and Port Royal and played enthusiastically. The 2nd part seems to be re-done, but quite honestly, we know almost everything from the predecessor. I know of no differences on the map, in the naval battles and in almost all other areas. Innovations such as advanced Stories, new houses and fencing duels enrich the whole to a maximum at a good add-on. A new game with 95% mature at full price is inappropriate.