[Tenzen12]

Can anyone confirm this?

Well, there seems to be good news on the Horizon (yes pun intended)

"Mamare Touno (Log Horizon's creator) confirmed that he held a question and answer session on 4chan's /a/ (anime) board on Saturday.

Mamare answered user's questions about Log Horizon and his personal preferences like...
... He also acknowledged that plans for season 2 are currently ongoing."

Now, before you start betting the college fund on a second season, wait till there's actually an official announcement about a green-lit or in production second season, cuz there's a pretty big difference between a story creator with "plans" and a Producer coughing up a 3-4 million dollar production budget for just 12-13 eps. (Yes, that is the average price for a 12-13 ep season)