Will future expansions migrate when added?

CronkIV

I had quite a few cards from the expansions they said were not added yet but will be and I was wondering if those cards will transfer when they add the expansions.

Ptilopsis

Yes, those cards are still associated with your account so should transfer fine.

For example I opened some older packs that aren't currently usable in game and got credits for duplicates, meaning the game recognises I have four of them already.