Oh, I haven't answered so far because I didn't want to interfere with your discussion. You're probably not surprised to hear that I've actually considered to add Polynesia a long time ago already, but so far have decided against it. I do think that they could make for a unique and interesting game experience.
In my opinion they should be about their early expansion, so I think a start 1500-1000 BC somewhere in Polynesia (Tonga perhaps?) would be appropriate. I also agree that giving them the ability to cross the ocean early makes sense. On the other hand, if we make their UU the Waka and allow it to enter ocean tiles, it would lead to inappropriate side effects like early circumnavigation. Instead I'd give them a UP that allows all of their ships to enter all ocean tiles adjacent to one they could normally enter (coast or culture controlled ocean). This would also stipulate more historical island hopping similar to the Viking Greenland trick, where you would need to settle and expand your borders to expand further (Hawaii would be reachable this way, for example). The Waka then simply would be a galley with lower costs and maybe additional movement, to accomodate their low production. This imo makes more sense than giving the Polynesians an ability to get high production somehow. Their uniqueness and challenge should come from getting by with low production.
I'd also bring back the Moai statues as a wonder, and will think of a way to restrict it so they cannot be easily built by more productive civs. Rapa Nui / Easter Island will get a stone resource to help them build it.
Their UB should instead be the Marae/Malae, which could work as an ealry and cheaper courthouse, to balance their widespread expansion.
I like the idea to tie Polynesia to Tribalism, but for a long time it's the only viable civic in that column for them anyway (no plantations for Agrarianism), so it works out already.
The UHV would be something like that:
- settle Madagascar, Hawaii, Aotearoa and Rapa Nui by 500 AD (or whatever is appropriate)
- build the Moai Statues by 1250 AD
- settle X land masses by Y AD (depending on the desired challenge)
In my opinion they should be about their early expansion, so I think a start 1500-1000 BC somewhere in Polynesia (Tonga perhaps?) would be appropriate. I also agree that giving them the ability to cross the ocean early makes sense. On the other hand, if we make their UU the Waka and allow it to enter ocean tiles, it would lead to inappropriate side effects like early circumnavigation. Instead I'd give them a UP that allows all of their ships to enter all ocean tiles adjacent to one they could normally enter (coast or culture controlled ocean). This would also stipulate more historical island hopping similar to the Viking Greenland trick, where you would need to settle and expand your borders to expand further (Hawaii would be reachable this way, for example). The Waka then simply would be a galley with lower costs and maybe additional movement, to accomodate their low production. This imo makes more sense than giving the Polynesians an ability to get high production somehow. Their uniqueness and challenge should come from getting by with low production.
I'd also bring back the Moai statues as a wonder, and will think of a way to restrict it so they cannot be easily built by more productive civs. Rapa Nui / Easter Island will get a stone resource to help them build it.
Their UB should instead be the Marae/Malae, which could work as an ealry and cheaper courthouse, to balance their widespread expansion.
I like the idea to tie Polynesia to Tribalism, but for a long time it's the only viable civic in that column for them anyway (no plantations for Agrarianism), so it works out already.
The UHV would be something like that:
- settle Madagascar, Hawaii, Aotearoa and Rapa Nui by 500 AD (or whatever is appropriate)
- build the Moai Statues by 1250 AD
- settle X land masses by Y AD (depending on the desired challenge)