This just in by way of SDS and WG @ 4chan: according to a compilation of Comiket 69 news items posted to the event’s official site, Media Factory has announced a second season of the Genshiken anime set for UHF broadcast in October, 2006.
Saki provides the only appropriate reaction to this news:
…2006 is going to be a great year for anime indeed.
[EDIT] As of June 3rd, 2006, there is no further news of a second season of Genshiken airing in the fall. A season of Kujibiki Unbalance has been announced, however, and should be taken as superceding the Genshiken series announcement (unless notice to the contrary comes in at a later date). I’m sorry for the confusion this post may have caused.