Yup, it hasn't gone away or stopped growing. It might be taking too long for journalists to find interest in it right now, but that has low correlation to the research effort.
I'm not in the field so I don't want to try to guess how long it will be. But of course it will be in gradual increments of cost, quality, and size. There won't be an exact point in time where we transition to being able to mass produce this material on a large scale.
