User blog comment:Warmachine375/When will Gun Gale Online become an anime?/@comment-6697950-20130403113408

Technically, GGO already made its debut in the novels, so it's not exactly correct to say that it will be making its debut to the series, as the anime is just an adaptation, while the novels are the actual series.

Now that that is out of the way, I am also looking forward to a second season of the anime, if/when they decide to make it, but I do wonder if they would manage to actually make a 2-cour season for it, as Alicization is too big of an arc to be merged into the same season as GGO, in my opinion.