Blizzard has announced free transfers from selected realms to a brand new realm. If your guild or you alone wish to make the move, follow the instructions.

Bornakk: We will be offering free character moves from a selected high population realm to a lower populated realm, assisting in population dispersal. The ability to move a character on the selected source realms will become available on Tuesday, October 28 at 12:00PM PDT, and are scheduled to run until Tuesday, November 4 at 12:00PM PDT.

In the event that these realms meet our transfer goals before the scheduled end date, the transfers to that realm will be disabled. We highly recommend that if you are planning to transfer that you do so at your earliest convenience. No characters will be eligible for these free moves once the transfers have been closed.

Once the transfers open you can begin your transfer by visiting the Character Move page located here:
https://www.worldofwarcraft.com/account/character-move.html

Source A (PvE)
Silvermoon
Aggramar
Alexstrasza
Proudmoore
Whisperwind

Destination A (PvE)
Korialstrasz

 Source B (PvE)
Zul’jin
Area 52
Medivh
Thrall
Doomhammer

Destination B (PvE)
Terokkar

 Source C (RP-PvE)
Moon Guard
Argent Dawn
Feathermoon

Destination C (RP-PvE)
Sisters of Elune
Source D (PvP)
Tichondrius
Kil’Jaeden
Mal’Ganis
Arthas
Mannoroth
Blackrock

Destination D (PvP)
Azshara

 Source E (Oceanic PvP)
Frostmourne
Barthilas
Jubei’Thos

Destination E (Oceanic PvP)
Dreadmaul