Big O is returning to the Adult Swim Fix starting June 13. I've given up hope for a third season.

But if there's enough interest maybe AS might at least put Seasons 1 and 2 back on the air.
Thanks. After all that time spent on my class, I need to catch up on "Big O" again...
I even heard he said he was going to quit his position if they even considered making a season 3.
At this point, I've learned to be careful about the "Cartoon Network" information I receive. There's a lots of rumors going around...
It's not about wanting or not wanting, it's about the viability.
Big O season 2 didn't make them as much as their original series, and they're cheaper to boot. It'd be bad business to do that again.
Well, that's assuming their only intention is to make money. Don't get me wrong, making money is the
objective. I'm just saying sometimes money can be made in other ways, like by recognition.
I will agree that Big O Season 2 alone was no money-maker, and Season 3 would probably be the same. However, Big O brought another return: viewers. Viewers to buy from Bamzu, Wendy's, Saturn, etc... Viewers who see spots for money-maker shows, and may tune into them.
It's sort of the same thinking that made ailing G4 Gaming Network buy TechTV Network. G4 was losing viewers, and TechTV had viewers. If Big O Season 3 would boost viewership and merchandising in "all things AS/Cartoon Network" you can bet it would be made. It's just not needed yet...
OK, now what makes me think CN hasn't altogether forgotten about Big O? It's not just "the fix", or a comic book seller's rumor (that's another thread)... Big O was used in another AS TV spot. It was showing silhouettes of small to large "objects" (some CN, some anime). It went from something like small, larger, BIG, and the silhouette for "Big" was "Big O" (obviously a play on "big" which is also his robot class). If they really wanted to get forget "Big O", there would be no mention of it again (just like a cancelled show is never mentioned again). The question is more "when?" than "if?" now...