Having polynesians would be a unique addition to the variety of champions already existing in the game, especially if they were somewhat to a degree implemented into bilgewater lore. The lore is very flexible, capable enough of allowing more champions to be addded and prosper. Not only will it attract a greater branch of new players, it may bring back old ones, who are interested in such a unique character (especially those of Polynesian ancestry). Race and origin of a champion plays a powerful factor into whom a player plays, and are very likely to choose those set of characters. A polynesian champion would be especially groundbreaking for players in oceania, who have longed wanted to play a champion long over due, especially since minority groups are underrepresented. Having a champion represent something similar in nature to the player will make them attractive and thus, as mentioned earlier, would attract and keep more players. More expansive lore equals much more immersive game play. It would be really fun to play a champion thats kinda like you. And would probably make me more inclined to want to buy skins of said champion.