Crap cards e.g zlatar will pretty much stay the same price because there are so many bad cards for low points to choose from and good players wouldn't choose to use them because they are terrible.
Good cards will go up in price by a lot as they are usable but allow more points to be spent on OP cards. They are only slightly worse than the staples used in elo.
The OP cards in elo now will probably stay the same price because they will be used as much in decks before as with new system.
Elo banned cards that aren't ridiculously OP will go up a lot as they are now useable in elo. The most OP won't because their point cost is too much to make them viable