I think the best thing you can do is just keep working on yourself. Read relationship books and strive towards being a more patient, loving and accepting person. Try to learn what your husband's needs are (which is often what most men need) and work towards providing those. Also, try to be a good listener and friend to him. Work on appearance, attitude, etc... as if you were a single woman!!!! (believe me, I've been around divorced woman, and almost was one myself... most of them put 100% in being hot looking and attractive in personality, so that's where all of us need to be... but better! Independent self-assured, happy, enjoying our lives, etc...).
Also, relax and continue to give him the space to think about things. Focus on the kids too, and doing fun things with them with, and without, your husband. Try to enjoy life more regardless of where he is. Keep up the PMA.
And don't have any expectations. Even if we know our marriages could work, we can't force our husband's into realizing it and wanting to stay. They have to mentally make it there, and all we can do is try to make the marriage and family a great place to be. But don't do it just for him, do it for you and your kids. There may be a new you, but HE may still need to make some changes and that's not anything you can tell him to do, or change in him.
There is no arriving, ever. It is all a continual becoming.