Instead of changes made by the team, this will be purely driven by Realmers.
Each quarter, there will be a World Event called the Prime Convergence. Realmers can contribute Collectibles of the type they want the next Prime to be.
For example, if you want Aquatic Collectibles to be the next Prime Collectible, you can contribute Aquatic Collectibles to the Prime Convergence.
Contributions will be tracked on-chain and the Collectible type with the most Collectibles contributed will be the next Prime Collectible.
That means it will require social coordination amongst Realmers.