See Sanctuary Anew Through Character Transfer

news.blizzard.com:

Salutations. We rejoice in your return, adventurer.

This Diablo Immortal Content Update introduces the new Character Transfer feature. Beginning after the maintenance period, players may move one of their characters from their current server to a new server. Your first Character Transfer will be free, but additional transfers can be purchased.

Since this is an important decision, we wanted to alert you that some servers will be merging shortly after our next Content Update in two weeks. This change is being made so players will have an easier time finding other players to party up with regardless of the server they play on. To ensure you can make an informed decision on which server to transfer to, here is a complete list of all servers that will merge:

South America

Bailey

Morlu

Vidian

Flavie

Torajan

Blunderbore

Asylla

Ghom

Oza

Izilech

Jondo

Gorgothra

Xul

Elzix

Belial

Akara

East Asia 1 - KR

아스카리

세릴

라다먼트

나탈랴

그리스월드

사르고스

아우리엘

미카옐

와리브

키대아

자카

카샤

East Asia 2 - JP

ラクリ

マノルク

オンゴリ

リリス

エスカラ

ゾヴ

ファヒール

イナリウス

ティラエル

アンダリエル

ザイム

ホラドリムのキューブ

North America 1

Caldesann

Kanai

Eternal Crown

Deckard Cain

Zoltun Kulle

Sand Scorpions

Stormshield

Old Growth

Khalim's Will

Purus the Decimator

Halls of the Blind

Hand of Justice

North America 2

Sin War

Prime Evils

Tree of Inifuss

Soul Siphon

Sandro the Mouth

The Malus

Iceburn Tear

The Worldstone

Plains of Despair

Town Portal

Wirt

Hadriel

All servers that are merging have been broken into groupings of four. Once Server Merge goes into effect, you will continue to log into your same server, but will notice you can now play Diablo Immortal with players on any server in your grouping. Do keep this in mind when considering which server to move to using the new Character Transfer feature.

As with previous Content Updates, there will be server maintenance starting on October 25,