Correct me if I'm wrong but I'm pretty sure GGO is just a game.
Unless it was officially announced, not speculated by the SAO fanbase then there shouldn't be any reason to look forward to it.
But, adding onto the discussion I'd lower my expectations considering how the 2nd arc of SAO went.
Edit: Holyshit, see, originally I heard of GGO somewhere in like april last year from past google searched eventually believed its just a game but after some light googling right now they officially confirmed it in their special episode released in december 2013. Thats pretty damn cool LOL.
I'm gonna lower my expectations and hope I get blown away, I'm sure I'm not the only person who thought their 2nd arc was so bad. Assuming the same people work on GGO, the company has some pretty good titles that have been released under em. Lets hope they bring their game for GGO :OO.