The Pokemon TCG is a fluid market where card values fluctuate daily according to various factors, such as rarity and hype surrounding certain Pokemon. However, the English market is only a piece of the overall picture,

If you were a late adopter of Pokémon TCG Pocket, you may have missed out on some of the Promo cards from the early events and Premium Passes. Unfortunately, there has been no indication that any cards no longer available will return to the game,