But I see them as being perhaps a somewhat more distant future possibility to fully replace a real womb due to the all of challenges.
When I think about the long term future of humanity and human development, I can't help but assume that things like artificial intelligence and simulation will have a significant role. In other words, trans-human and post-humanism.
Many techno-optimists like myself already anticipate superhuman artificial intelligence in less than 10 years. We might eventually (some decades further down the road) arrive at the point where it is easier to produce a "son" or "daughter" with the exact qualities we desire by 3d printing and model/knowledge configuration.