When the Donut SMP border expands, what prices will items drop to or go up to?

The Donut SMP border will expand to 30 million soon this applies to all the dimensions. What prices will god apples, dragon heads, Elytras, Netherite, and all of the Netherite armor and tools drop to, and what prices will things like spawners and farm materials, e.g., redstone stuff, go up to? Also, since I am using sand to get money right now, will sand go up in price, and if so, what price will it go up to?