Anybody ever done it? Seems a natural to me. Did the providers live up to their promise? Is Triskelion now self-governing? A member of the Federation?
An excellent short story in the first "Strange New Worlds" told of Shahna's future on Triskelion. http://memory-beta.wikia.com/wiki/Shahna "In 2293, Shahna was an ambassador, and attended a diplomatic conference on Earth, where she was briefly reunited with Kirk prior to his presumed death on the USS Enterprise-B. (TOS - Strange New Worlds I short story: "The Lights in the Sky", TLE novel: Excelsior: Forged in Fire)." Beware of any additional spoilers before reading the SNW story.
Plus I think Shahna appears in one of the Sulu audio books. But I do remember that one story had Shahna heading to Earth on a shuttle as the Ambassador of Triskelion to the Federation, and it was shortly after the opening of Generations.