Sounds like it could be a great solution for you. I can't give you any advice; really don't know your situation, but if it were me, I'd at least try - if it means avoiding divorce, and you all get to be happy and fulfilled in the end
as for me; DW has been staying here with us the last 2 weeks, which has been great, and also challenging. it brings up some issues for DH, which we're talking about and working on. and some issues for me too, I guess. but we had a nice talk about it the other night, and at this point, since, me, dh and dd are going on vacation to new zealand next week, all will be left on hold till next year when we go visit her down south. DH will also get to meet DW's family, which should be nice. her family are great, and love me heaps (when DW told her mother that she was thinking about breaking up with her BF of three years and getting back together with me (we were married 8 years ago and have been estranged since then), which would involve being in a poly r'ship, her mother was totally happy and encouraged her to go ahead with it
DH has still yet to "come out of the closet" to his family, but that's his deal I guess. it's just annoying for me that I have to censor my blog, since MIL reads it.
Also, DW and DD have been totally bonding; DD started calling DW "mum" which is really freakin confusing
so then she differentiated us as "green mum" (I only wear green clothes) and "smoking mum" (DW smokes - I've also set a condition that she can't move in to live with us permanently till she's quit smoking - I just don't want a smoker living in our house, and modelling smoking for DD).
sorry for the novel, anyway, that's where I'm at