In regards to a Season 5, there's still no info. In panels at D*C on Friday and Saturday (available on YouTube, BTW), Barrowman said that he hadn't heard anything regarding more Torchwood, or Jack returning for Doctor Who's 50th. He did say he'd be all for it because he's a fan, not just an actor, and loves the character.
If they do another installment of Torchwood, please let it be better than MD. Ugh.
If they do another installment of Torchwood, please let it be better than MD. Ugh.