This game seems rather promising, and it is really refreshing seeing that it is single-player (or at least has the option to play single-player). Most of the good age of sail games are multiplayer which is a bit annoying for me personally since I like to go at my own speed with most games I play.
But my question is will there be a sandbox mode? I like the careers and whatnot but I feel a game like this could benefit from a full sandbox mode where you can do whatever you want with minimal limitations (I imagine a pirate career could work as such).