I think you have done a great job and most of what is done I'm fine with.

Some things could still be tweaked further, however I'm not the only one to say yes or no to your proposals, but I'll give you my view of it.
All good ideas. I didn't remember since it was not in the submissions post, sorry.
I think the event is too good (a option is), the mine valuable enough as it is (Isaac Brock said the same IIRC). I'm not convinced it was actually a colony, but rather a fortified TP. I can let that slip since it's important for POR and fortified TPs doesnt exist in the game.
I dont think it was more than a TP, and agree with the vanilla campaign (its a TP lvl 3 both 1492 and 1617). This is the thing I feel the strongest about. It wasn't a very big thing this colony and comparable to many other colonies/TP's in the game that doesn't have events at all. Therefore the effects shouldn't be too favorable IMHO.
I share Isaac Brocks concerns here, that a player will not colonize it at all since he'll get a free ride if he just waits. However it's not a too big thing. Delaying it a few years might be good.
Same thing here as Arguin event. If we do this event, we should do event for all colonies and all states. We should begin with to make this province triggered since any effects for POR should be the same for any other colonizer. The event could otherwise go into that package of Daywalkers optional special AI help events that has been discussed.
OK.
I don't think the case was strong enough to have theses provinces protected in a special way. The chances anything will happen to the Portuguese colony aren't to big anyway. Removing the province from Ashanti is fine with me.
Silly over-deterministic events if you ask me, havent noticed them before. Should the core be removed in 18019? I don't care what happens with these events really, so anything goes.. (I'm not too fond of granting cores on colonies.)