All the currently available Promo Cards in Pokemon TCG Pocket are listed below, as well as how you get them. These promo cards are also each numbered in-game for ease of categorisation, and are labelled as part of the "Promo-A" set (with later sets presumably listed as "Promo-B" and so on).

The promo cards in Pokemon Trading Card Game Pocket can be useful in some respects, but they may induce FOMO among players in the long run.

Now that the promos for Pikachu, first-gen starters, and Mewtwo are out of the way, an event for one Pokemon and its evolutions seems inevitable.