The 2.4 PTR is now officially up and as you would expect MMO Champion have all the patch notes.

Check it out. 

Warlocks on the PTR are buggered...

The premade warlocks that were copied over the weekend (Undead and human) were broken and not allowing players to log in with them. These characters are un-recoverable. If you copied a premade warlock and can not log in with it go ahead and delete the character.

New premade warlock templates have been created (orc and human) and are working correctly.

Wow, patch 2.4 is going to be on the public test realms before the end of the year!

Q: What can you tell us about Sunwell?
A: There will be 2 instances, both of them for lvl 70 players. 1 raid instance (25 mans) and one 5 mans instance. You will be fighting against Kael'thas bloodelfs, also Sunwells architecture looks like Silvermoon City.

Q: What is the approx release date of Patch 2.4?
A: No release date yet.

Q:When will patch 2.4 be availible on the Public Test Realm (PTR)?
A: For the moment, we are fixing some bugs (patches 2.3.1 and 2.3.2) but we plan to have patch 2.4 this year on the ptr.

Some changes to the video settings tab are coming out and have been found on the PTR. However:

This isn't a platform specific change, the options dialog has been re-laid out to make it easier to understand what each option does. All the old variables are still available in config.wtf but some of them are now controlled in different ways.

Some changes to the inspect function on the PTR's:

# Inspect distance has been increased to 30 yards.
# When you inspect another player, you can now see their talent choices as well as their equipment. 

Patch 2.2.3 is now up on the PTR and here are the patch notes:

• Clients utilizing OpenGL video modes will no longer experience graphical anomalies and missing textures after minimizing/maximizing the window.
• Fixed an issue that caused Fel Eye Stalks during the Legion Ring event to not despawn when the event is completed.
• Fixed an issue where zoning after mounting and summoning a pet was disconnecting players.
• Fixed an issue where the Shift key would get stuck in game.
• Using a /equip macro while affected by certain crowd control spells will no longer cause the items in the macro to be stuck in your inventory.
• Using very low values for SetScale() will no longer cause Mac users to disconnect from the game.
• Default sound channels have been changed from 12 to 32.
• Microphone resources will no longer be claimed by World of Warcraft when Voice Chat is disabled.
• Sounds will no longer stutter and pause if large amounts of creatures are being hit with AoE attacks from multiple sources.
• Sounds caused by spells cast on or by the player will now play more consistently.