after haruhi s2..... maybe.... ?
season 2 seemed really conclusive to me though. the last 3 episodes had more plot crammed into them than the previous 42 or whatever. honestly, i doubt there'll be another season. it seemed like they knew s2 was it, and finished it up real fast.
but who knows. maybe in s3 shana/yuji/whatever will be more grown up and it'll be a seinen. my god i would watch a gore-laden shana.
and the chances of kyoani making a seinen show are about 1:999999999999999999999