Control rooms in TV studios are never going to go to LCD or LED. As noted in other posts here, these technologies are too bright (hurts the eyes in dark rooms when you're doing a strenuous job and looking at multiple monitors); there are too many artifacts (especially motion blur); and the colors are impossible to calibrate properly. You can't really turn an LCD or LED panel down to the right level, or it looks dull and washed out. I just got a new laptop computer that has a white LED backlight, and even after calibrating the white point to 5000K, it hurts my eyes to use it for more than an hour. I have no problems with my eyes watching the plasma, not even for a long sports event or an opera.
My solution to the problem of Panasonic plasmas going out was to buy a 2nd one and put it in storage. When the first one dies, I have an exact replacement for it. Everyone who sees it marvels at the PQ and the accurate color. And I did NO calibration! This was a professional studio monitor, and the calibration was correct out of the box, although there are multiple controls for tweaking it. When I put a VHQ calibration disc on and view the color patterns and the gray scale ramps, there are perfect blacks, perfectly scaled grays, distinguishable shades of white at the upper end. A perfect monitor.
Granted, this is a 2008 720p model (I bought it in 2010), and only 37" (don't laugh, I live in a small apartment and don't have room for anything bigger). I went for 720p on purpose, because I have a lot of SD 480i material, and I didn't want to have the large scaling artifacts I would get jacking material from 480i to 1080p. Paired with an Edge video processor, which has good aspect ratio controls, I get no burn in, great pictures, and so on. No heat problem, and the electric bills have gone down compared to my old CRT.
If you are ever in New York, drop by the lobby of the Metropolitan Opera House. They have two of these same monitors (even older versions) on the columns next to the box office. They have been going full tilt, 16 hours a day, seven days a week, since they were installed. And the PQ is still great. Seeing them is what sold me on the models.
Panasonic also makes a series of "hospitality suite" LCD panels for hotel use. I got one of these for my daughter. It has decent PQ and color quality for an LCD, but I still much prefer the plasma.
I think that even if Panasonic gets out of consumer plasma, they will continue to make professional monitors in plasma (and by the way, the warranty is two years instead of one). True videophiles will still have the option of buying a professional monitor. No tuner (who needs one in the day of cable and satellite transmission); no speakers (add your own, or buy the addons that Panny makes to go with the panel); not even a stand or wall mount (they must be bought separately, and the stand is proprietary). These items drive the cost up a bit. In return you get rock solid color calibration, a much more robust power supply, and a longer warranty. Better parts in general. Do not lose hope.