Here are some rough notes I got from the live stream.
Level increase to 110.
Ring of Scale launches December 12th.
Beta Reward is a helmet (looks like a cactus plant) will augment into heros forge.
Familiar from the pre orders are available on the TLP servers. None of them have stats.
* items are available on the TLP servers on the expansion page.
Housing items will be included for your houses if you pre order.
Housing item, Green Latern ports you to skyfire, right outside of Gorwyn.
1 new zone Gorwyn. Veeshan's Peak redone. Skyfire redone. Howling Stones redone. Will check if more once I get in beta.
3 sets of Heros Forge, Raid, Group and Tradeskills.
9 raids.
New AA's.
Mercenaries will level up to level 110.
Devourer Familiar.
Familiar riding a mount is premium only.
Cocatrice mount comes with collectors edition.
Wyvern mount is premium.
New tradeskills.
105 to 110 is the level target for all the expansion.
Zones are set up the same as EoK as far as tiers go.
No beta NDA.
You can pre-order RoS here.
Once you pre order you should be flagged for the beta forums (may take a little bit). The beta client link is posted on the beta forums.
You can watch the recap of the stream here.