Gold Lunar coins

[Paint Your Wagon]

I see gold one ounce Lunar coins from the first series regularly on ebay Germany
I understand that each coin was limited to 30 000 and that the dragon was the first to hit that limit
I understand that series is now finished at the last coinage numbers .
So I have a few questions

1 The early years are sold in so called original capsules some seem to be square and some seem to be round
What year did the square capsules end ?
2 Is it possible to buy round capsules for the early years ?
3 As the mint released final figures of minting ?
4 Some claim that the price of the series will be determined not by the dragon but by the lowest minted coin
I do not believe this because I do not believe many collectors will buy the entire series ; certainly not with a
second series allready started with the new RAT