Thanks guys. 2s2q, I think she's doing her due diligence by considering all options equally. I'm not counting my chickens by any means as she has explicitly said she has no feelings for me. We discussed the future more as an "if we get there things won't be the same basis" which was an eye opener for me as well as a bit of a guide.
LFW, now that I actually understand my wife I feel a great amount of respect for her, not only for not throwing me out but by holding on as long as she could, by keeping the door open for reconciliation while not pushing it open herself, by researching relationship topics and most importantly, by talking and listening. Don't get me wrong, it's my job to listen right now, but she has asked me things and taken them on board and while there are no guarantees, I am very grateful.
I have taken note of her demeanour and while she has no feelings for me and she's dealt with migraines the past three days, we've got along wonderfully well having spoken in depth and calmly about our situation as well as spending time together, laughing and plenty of eye contact. We even got into a play fight tonight which I know is a good sign. The hard part is that she doesn't trust me so whilst the signs are promising there will be emotional hurdles for her to cross and I'll just have to bide my time.
Me: 31, W: 29 T: 4 M: 2 Kids: 3 (SS: 7, SD: 4, D: 3) Separated, still living together: Nov 2013 Separate bedrooms: Feb 2014 W working away; kids with me: Nov 2014