There's no PR announcement for this.
But here is a generic Mix-n-match PR statement:
We are sunsetting/closing/removing/demolishing/re-theming/jack-hammering/wood-chipping
X* because of "guest feedback asking for more Y** experiences".
* X = trees, benches, Snow White's Scary Adventures, 20,000 Leagues, Mr. Toad, Horizons, the Imagination pavilion, the Wonders of Life pavilion, Pleasure Island, swimming in Seven Seas Lagoon/Bay Lake, River Country, Pepsi, Main Street Bakery, Skyway, Alien Encounter, turnstiles, monorail operating hours...
** Y = "family friendly", "meet & greet", "shopping and dining", "photo spot", "immersive and memorable", "playground on unshaded pavement", "daytime stage show on unshaded pavement", "nighttime dance-tacular party", "festival and convention center opportunities", "vacation-without-brain-eating-amoeba", "refreshing Coca-Cola", "fabulous Starbucks", "themed bathroom", "Stitch", "NextGen Magical", "see WDW from a magical bus!"