I must say I also dislike the idea from having pre-order cards without being platinum and then later have them released as platinum. I see no harm in them being platinum right away. That was the whole idea for platinum, right? For it to reward pre-ordering. Correct me if I'm wrong.
It just tells me: "Yo, why cash in now to have cards you can't use in ranked when you can cash in later and have a platinum version of them that can even go ranked?". Atleast allow them either for ranked or make them platinum. Also, it won't be the money grab you might think, as some/many people will hold back until the platinums come out (talkin about plat collectors, ranked only players and newer players).
Maybe its too big of a hustle to solve 2 problems:
1. Only 1 Card should be platinum (new set), while all other cards still need a chance of beeing gold or foil or without any border.
2. The card distribution would still need in balance with a normal Pre-Oder pack. So when i open the final Plat-Pack with all the new cards, i shouldnt have a disadvantage to get any "must have" card or getting a needed Epic to a lower chance. If for each "Promo-Pre-Order" Pack the Card pool is that shorten, it might happen that i can pull easier cards i need/like than out of the whole pack.
I have not made up my mind yet about the new scenario. Sure, it might optimize the cashflow for Yodomare - on the other side, i dont see a reason to buy the "Promo-Pre-Order" Packs and participating at the "real" Pre-Order.
Overall, the available "normal card" pool is much bigger than it usually was. Gives much more people the chance to play the new fancy decks when those cards are ranked legal, than before.
Maybe i like it - but rly, i want to know what time schedule we are talking about. Pre-Orders in late 2016 or early 2017? =)