if u read the light novel, u could have guessed that the 1st volume of Sword Art Online could take 12 episode to finish(there no way they can skip that 24chapter full of plot) and a few ova for vol2

if they're making it a full season which is 24 episodes, i guess they're gonna cover untill vol 4

on a side note, i would have prefer Sunrise to do SAO, i mean they did Gundam, Code Geass, Gintama and a lot of other popular series after all, so i kinda hoping this one gets famous too since im already hoping for a second season

Btw, is the game gonna RPG or online? i dont care which one but i sure hope the US version came out fast