From what they said in the review the game sounds as good as we had all hoped. They confirmed that there was Downloadable Content (including maps coming out as soon as the game is released), and here's the best part THEY REMADE BLOOD GULCH FOR HALO 2. That's right folks, the best map since de_dust is back and it has an assload of secret passages and the bases are expanded with a banshee located in the basement.
The single player campaign is roughly 12-15 hours long on normal difficulty (They confirmed no other Spartans in the game, and no you don't see Master Chief's face), and is very involved, including covie secrets revealed and the mysteries of Halo and the Master Chief.
The multiplayer is back and better than ever, including 7 game modes, fully customizable game types (you can change everything from weapon sets, to shields, etc.) and clans that can have up to 100 people.
The only negative thing they put in the review was that the ending was bad (heard it was one of those "to be continued types", which hopefully means a Halo 3!).
Man I can't wait till Nov 9th.