Speaking with a Trigen official the other day, who let on that the company receives development overtures for the plant. Trigen thinking seems to be that a new plant could be put a few hundred feet south of the current one. During the first two years of new plant operation, the current plant will be held in reserve as a insurance. Once the new is proven, the old one will be released. I gather nothing is imminent.
Trigen is the cork in the Gateway Center bottle. Nothing will be built without Trigen cooperation, and Gateway ground will never be broken until a new plant has run successfully for two years.
When (or if) you see commercial paper on such a deal, only then will you know that Gateway is real!