There is an article in today's NY Daily News , February 29, 2008, that included the news that the Ravenswood Keyspan Plant is up for sale. As stated in the article if it would be sold to real estate developers it is possible the plant could be taken down.
This is highly unlikely as the plant is one of only a few plants generating power for NYC. But can you imagine if the plant were dismantled and this area of Long Island City developed for residential use how it would impact Roosevelt Island?
The change in views alone would alter the real estate desirability (and affordability) of the island not to mention severly increase the air quality of the island and all of Western Queens.