User blog comment:Qunow/Sword Art Online II 2014 Activated/@comment-9112650-20140101041344/@comment-3551173-20140101062834

Mega spoilers for those who haven't read the LN

They will probably put in the evil-god part after GGO as an adventure with Kirito and Leafa alone, then there will be the crusade against Laughing Coffin possibly with Kirito and Asuna featured (I'm assuming they want the two girls to get more screen time since Shino will be dominating the episodes mostly for GGO, well that's how I would do it in order to hit the largest audience target.)

Anyway say GGO takes 12 episodes +1 for Crusade + 2 for Jotunheimr adventure + 3 for Caliber + 7 for Mother's Rosario = 25 solid. So yeah don't worry about it and if they are short episodes we get filler which will be fine based off of the recent EE I think Reki can make it fun.