Yup, as long as they had some form of gameplay mechanic (more so a useful one than a weird gimmick!), I’d love to see Oceania civs.
A pirate one could be very interesting and very unique if done properly, however I often see these very broad Hollywood ones which are not cohesive - no historical basis, just random priates. I want to see what makes them unique, how they can be justified as a Civ, how they can function without water, what units they could have, etc. A fleshed-out piratical civ could be great, but I’ve not seen any yet
I would love something Oceania themed, partly because it’s one of the last remaining areas thematically to explore and partly because the native civs are generally so unique and interesting to play.
I had imagined they would play similar to the African or Colonial Civs, but when you aged up you would select a new pirate faction leader and gain access to new techs/units based on that.