From today's server save on, another 14 worlds will be actively shielded by BattlEye:
Amera
Astera
Beneva
Calmera
Efidia
Pacera
Refugia
Umera
Unitera
Veludera
Verlana
Yanara
Zanera
Zeluna
Therefore, having BattlEye activated will be mandatory to play on these worlds.
If BattlEye detects a cheating program or a manipulated client, you will not be able to play there.
Please also keep in mind that you will no longer be able to use the Flash client on these worlds.