My sympathies are with you. I myself hope RKS will revive Milly in the not too far distant future, but I think he has been happy to take a break and venture into other stories, like with Beth for example.
Who knows, maybe he will send her off on fresh adventures, once things have calmed down and he develops an idea or two. I'd certainly like to know whether Ben has survived and whether they have enjoyed some quality time together or he proposes before Milly decides to sample new experiences and/or dangers with or without him or Janice and Kyle. Have the twins survived their ordeal and been deprogrammed, or will Milly be helping Janice, Kyle et al to find them and bring them back?
There's a wealth of possibilities open