While research is ongoing, it's mostly related to fertility for GG's who are unable to carry or conceive a child.. They have a managed to "build" an ovary that will grow and mature eggs, but it currently is limited to a petri dish. The catch is that it requires cells harvested from a GG in order to work.. That's really the simple bit though.. Creating a functional uterus will take some time, I'm not sure stem cells are the entire answer.. They will certainly be part of the answer, but I doubt it will be the whole answer.
I've seen a documentary where they were able to grow a functional bladder, so there is some advances in growing organs, but I don't feel it's going to happen in time for most of us. There are also issues with what researchers are able to research due to funding and religious considerations..