Hey, I've seen a few things around, and is there anything about the hemospectrum that prohibits a long life? For example, both the Condesce and the Psiionic have lived as long as they did, is there a specific reason any other trolls wouldn't be able to?

The higher your blood color the longer you live.  The only reason the Psiionic lived so long was because the Condesce kept extending his lifespan.