**Trader sentiment heavily favors a price decline for the Pokémon TCG First Partner Illustration Collection (Series 1) sealed boxes by August 31, with the 82.5% implied probability for “Down” reflecting sustained downward pressure on secondary-market values.** Released in March 2026 as the opening wave of Pokémon’s 30th-anniversary products, the collection bundles a special promo pack of Illustration Rare starter cards (Kanto, Sinnoh, and Alola regions), two standard booster packs, and a sticker sheet at a $14.99–$21.99 MSRP. After an initial post-launch premium that pushed secondary prices into the $65–$80 range by mid-2026, values have corrected meaningfully as supply has accumulated through retail channels and reseller inventories. Recent TCGplayer data shows a market price hovering near $61 with recent sales in the mid-to-high $60s and listings around $75, indicating softening demand and increased availability five months after release. Series 2’s steeper recent drop (nearly 19% over 30 days) reinforces the broader pattern of anniversary-product price normalization once initial hype fades and more sealed product circulates. With no major new announcements, chart spikes, or high-visibility events expected in the final week of August, traders see limited catalysts for a rebound and view continued modest erosion or flat-to-down movement as the most probable near-term outcome.