It could be done, but realistically the technology is most likely not going to be pursued. It takes a lot of research money to develop a new basic technology like this, and currently most of the investment has been poured into LED. While there certainly is a niche application for "real incandescent" light that meets the new government-imposed efficiency demands, for most consumers and most commercial applications (which happens to constitute the majority of the market), the quality of LED light will be "good enough".
I wish they would commercialize this technology, but I am not hopeful. A lot of this media technology coverage tends to be oversensationalized.