What will help the cards see play is the year of the mammoth expansions are rotating out and both genn and baku are being banished to the hall of fame. Some of the cards from the year of the raven expansions that were previously considered too weak to play in constructed may also now get a chance to shine. It is also going to feel very refreshing that we are going to have a meta with no frozen thrones deathknights or odd and even decks.
We are only going to have 4 expansions plus the basic and classic set to make decks from so its going to be very interesting how the meta looks. The last time we had such a limited pool of expansions in standard was during journey to ungoro and that meta was probably one of the best.