I know I wasn't asked the question but I have some answers.I don't have anything against Portugal, but I am somewhat concerned about the niche that a Portugese Civ would occupy given the design of the other Colonial civs. We have a lot of civs with different trade route bonuses, some like Spain that have continental based effects, and several with Naval orientations. All of this narrows the obvious design options for Portugal.
Therefore, I am curious as to what Uniques players expect out of them that would create a new gameplay style that avoids too much overlap with existing Civs.
Some unique abilities:
Naval units receiving exp. for exploration like recon units.
Extra era score for discovering new features, natural wonders, continents first.
Trade routes receiving extra gold for every coastal water tile in the origin city and traders claiming water tiles.
Coastal water generates science (leader in cartography science)
UU: Nau can have greater sight and movement than the Caravel it replaces
Unique Improvement: Feitoria can only be built on land adjacent to the coast and a luxury resource. Provides production and gold for every luxury resource and +4 loyalty and fortified strength when occupied.