Worlds:
Danger Zone(Everyone)

Companions:
Cupid(February only) Cupid can only heal; Click on who you want to heal.

PvP:
Companion vs. Player
Player vs. Pet
Companions vs. Compainions
Ship vs. Ship

Ships:

Normal ships can look like enemy ships.

Housing items:

Gauntlets like Wizard101.
Computer (costs 1,000 crowns); It allows you to go onto Pirate101 wiki central in Pirate101.

I`ll come up with other ideas later. Stay tuned!