I'm not sure I mind, as long as it's a happy ending. My own personal take on it would be that he would build a reputation as a master swordsmith, and occupy that sort of liminal status where you ought to get looked down on as a 'tradesman' and yet everyone can tell there's a genius at work. I like the idea that he stays being somewhere in between, as he was in CotBP (where he was in between Jack and Norrington and no, I didn't mean it like that ;). I could also see him as a merchant or privateer Captain. He's got a natural flair for that too.