Well my first thought would be to take it slow. Think about when you first meet her. Did you move in together quickly or did you date a while and not live together until marraige? You don't have to start back at square 1 but your not to the honeymoon part yet either.
Both of you are making major changes in yourselves. You are not the same guy that she used to know. Let her enjoy who you are now and work towards moving back in. Once those feelings of "Love" are fully ingrained in her then move forward with moving in.
My 2 cents take it or leave it.
Me 34 Wife 32 DD 11 DD 9 DS 7 Seperated since March '07