Normally the number of stations a new series will be aired on isn’t especially noteworthy, but in this case the sheer size of the new K-ON!!’s broadcast stations makes for an exception:
For comparison, reasonably popular series airing this season are Sora no Woto with 4 stations, Dance in the Vampire Bund with 6, Omamori Himari with 7, and Hidamari Sketch Hoshimittsu with only 3.
The first series of K-ON! only aired on 9 stations, so this huge jump in the number of networks airing the show should prove testament to just how hotly awaited the continuation of the Keion-bu’s story is.
Indeed, stores in Akiba right now are still bedecked with all sorts of banners and posters commemorating the 2nd season announcement (the other current big otaku celebratory events being for To Aru Kagaku no Railgun and Haruhi no Shoushitsu), so this new reveal only stirs the red-hot embers of otaku excitement even more.