If you don’t want to read it all, here is a quick summary:

Things will be released over time, like with ToC, it won’t all come out at once.
You must clear regular before you can unlock heroic.
You have to clear all the sub-sections in order to kill the Lich King
The number of attempts per week is [...]

Here are some of the upcoming resto changes, as reported by MMO.  
Restoration – Gift of the Earthmother now increases your total spell haste by 2/4/6/8/10%
Glyphs -Glyph of Rapid Rejuvenation – Your haste now reduces the time between the periodic healing ticks of your Rejuvenation spell.
Item – Druid T10 Restoration Relic (Rejuvenation) – The periodic [...]

Well according to MMO Champion these will be our new set bonuses with the tier 10:
Item – Druid T10 Restoration 2P Bonus - The healing granted by your Wild Growth spell reduces 0% less over time.
Item – Druid T10 Restoration 4P Bonus (Rejuvenation) - Each time your Rejuvenation spell heals a target, it has a 2% chance [...]

Changes to Profession Benefits 
First I’ll start with the news… The benefits that someone receives form their professions are changing.  Here is a quick rundown of the changes:
Alchemy 
* The Mixology benefits from Northrend elixirs and flasks have been increased 
* Added a new pattern for Flask of the North, usable by players with a high alchemy skill. The recipe is [...]

New news in blue today: 
An Upgraded Squire: As any good squire should, this upgraded squire now has a mount and can be called forth every eight hours for three minutes of duty. The upgrade cost is 150 Champion Seals and your squire will also offer one of three services: bank, mail, or vendor access.
Bank, mail and [...]

According to the blue posts, there are going to be some mount changes in the next major content patch.  Basically, slow mount at 20, fast mount at 40, flying at 60, epic flying at 70. 
In druiding news this also means that travel form will be trainable at level 16, flight form at 60, and swift [...]