what do you reckon they'll do in the 4th season (if there is one)

I would like them to bring Ianto back, but they won't.

They will need a new base, hopefully still in Cardiff, and I'd love to see "Doc" Owen back. He's Dreeeamy!

Bring Ianto back would be great,but i doubt if it will happen,if there is a season-4,i think we were giving hints In Children Of Earth who would be joining torchwood in season 4,Lois who Gwen offer a job and her saying she was a P.A,and Andy

Ofcourse jack will come back if not i will die
it would be werid with out him

They couldn't have torchwood without Jack! let's face it!!
I think Lois will join.
not sure about andy...he'd be funny, but i don't think he'll get a main part.
Maybe Rhys will have a bigger role?
I'd like more previous characters to pop up again like Captain John and Martha :)

I think Lois will join ,since she's no longer has a job,and Gwen offered her one in Day-2,if she ever needed one,Andy undoubtly lost his job in Day-5,i can also see Johnson the government lady joining she's tough,but them she would out shine Gwen and Davis not having that,i can also see Micky at T.W.But the Biggest joy would be to bring Ianto back