Also see this and this post on deathknight.info
The new spell list posted on Neograf. Some of these are "highly" questionable however. Such as a "face slap" which stuns forum posters.... Decide for yourself.
There are some new and interesting deathknight, shaman, rogue abilities, and random bits in between though.
The Interesting stuff
No guarantees that all these spells / abilities will be for rogues, but damn nice if they are.
Some possible changes to mace and fist specialisation:
Flying mounts will be useable in Outland and Northrend (but we knew this already) :
And the much discussed riding crop enchant :
Resto shamans finally would get a weapon temp enchant that's useful to them.
Latency reduction trick
I haven't been able to personally verify this one yet (though I certainly intend to), but this video was on our guild forums. Supposedly it details a small change you could enter in your Windows-XP registry that would lower your ms (latency) by a fair margin. This video seems to relate to the same thing, but claims to do more.
Give it a try i suppose, if it doesn't work you can always revert it later.
Keep in mind this is for Windows-XP only.