I've been speculating if these new card sets help increase the value of older cards? One point to think about that the power of the newer cards are much lower than the older sets of cards. Meaning you wont be getting as much power rating and sps collection power as the older cards do.
Biggest example is Gold Foil Legendary cards of the Dice/Rewards/Untamed give you 50k power compared to the upcoming rewards cards and dice cards that will only give you 12.5k. That means those cards wont give you good power to reacher levels compared to newer cards.
Another food for thought, is that it could help increase the rental value of older cards if you just "need" extra power for reaching higher ranks?
What is your opinion about this question of mine?