Heather, Your h probably won't send her a card since he texted her. If he did send one, it may be delayed due to the Labor Day Holiday. But I wouldn't be "expecting" him to do the right thing these days. It's a shame, but all you can do is love your daughter.
You and your daughters may discover that once you move and the divorce is final, he may have even fewer connections w/them. Some of these completely wipe their "former" families right off the slate and go on w/their lives.
I hope he comes to realize what he had and lost. Such a shame.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.