Can anybody enlighten me on details for the purchases for the POE 1 and POE 2,

As far as I know (correct me if Im wrong) the only thing they clarify about purchases is that all all purchases carry over to both versions of the game

However can anybody clarify to me if it carries all purchase made prior to the release or it will continue for the future release as well.

Does it mean that if we have full stash tab purchased at the poe 1 we would get the same full tab at poe 2?

how about future purchases? say i brought new tab for the new poe 2 will i get the a new tab for the poe 1 at that point of time?

As of now, you would need to purchase gold coin in poe 1 to buy stashes, cosmetic etc, therefore if I brought for example 500 coin and does it meant that i have to spend all 500 coin and share among 2 games upon release?

OR, does it not shared as you get a separate 500 gold coin each in both game,

OR, if I brought something from poe 2 for example stash slot it will automatically be there in poe 1 upon release.

as I surely would not spend twice the amount of money ive spent for 2 separate game if they decide to split the game into 2, therefore you would need to spend each purchase separately upon release.