Rei'kari spent a rather depressed hour or two at the end of time trying to decide what to do with herself, before she finally realized that to do anything but go home would be entirely selfish of her. She felt deeply responsible for Glaurung's destruction, but she knew that she could hardly do anything about it after the fact. She consoled herself with the fact that it was what Glaurung would have wanted and now dragon-kind would forever more be free of the Beast. Also, to some degree she just got fed up with all the depressed people hanging around the end of time... stupid people!
Rei, as she came to be called more and more often, stepped back through time to her present and to what she still thought of as her home, the residence of her adoptive parents, Morijin and Ange Illindra. She told them of Glaurung's death and its heroic triumph over the Beast. She was glad to finally be somewhat vindicated in her decision to run away and even gladder that she could now return.
Overnight she became both famous and infamous on Glaurung. Some saw her as a figure of prophecy who had lead the Dragons home and others saw her as a foolish child who had lead the spirit of their world to its death. Fortunately for her, Shen-Lung quashed the worst of those rumors with his account of Glaurung's choice to return to Earth and the story of the battle where it heroically gave its life to finally vanquish the Beast forever.
Even though she was glad to return, Rei still cared about her human (and only sort of human) friends. She traveled often to Luna and to Earth, but she found she still had to go disguised or be variously harassed by many people.
Caught between two worlds, neither of which could not quite accept her for who she was, Rei began to try to do the best she could to bring them together. She started out leading what amounted to tours of the human worlds for young dragons who wanted to see beyond the world they knew. Even though there was no longer the threat of destruction, she found that a good number of the grown dragons felt set in their ways and were nervous or even secretly terrified of leaving their world.
Rei decided that if the dragons wouldn't go to the human worlds, perhaps she could have it the other way around. She tried to interest MagiTech and Mercaba in developing technology for Glaurung and convinced the Council to allow the installation of small wireless networks that soon blossomed into global coverage. It only took MagiTech a few years to adapt neural computers for dragon-kind (at Rei's commissioning) and their use boomed in the younger generation.
Rei petitioned repeatedly for the admittance of psionicaly talented humans and other gaian races into dragon schools. She found very strong resistance, as many dragons began to react negatively to the upheaval and change that technology was bringing to their society.
After a decade of adamant refusals, Rei gave up on the old, prestigious institutions and bribed or coerced a handful of psionic instructors from the New Starshine Institute for the Psyonically Gifted (including her adoptive father, Morijin) to help her start a new school on Luna. (Or as Rei might have put it in her youth, "Screw all you racist f**kers! I'll just go have my own damn school then!")
Together they founded the Multi-Planetary Institute of Higher Learning. From the beginning the Institute's motto was, "New lessons for all of Gaia's children." and they up held that promise. Over the next 200 years the Institute grew and came to teach magic, psionics, all branches of technology, and a history rich with lessons that traditional schools shied away from. The Institute attracted a number of students from Glaurung and from the other worlds. Though it was hardly the only cause, it helped encourage all sentient beings to see each other as equals and to understand each other better.
Not content to sit on her laurels, Rei continued to learn more about the humans, other Gaian races, and the history of her people that had been forgotten. She poked her nose in rather a lot of peoples' business and though it got swatted a few times, she enjoyed all of it immensely.
Rae eagerly awaits the rebirth of Glaurung's life-force, even though she knows it would not be the same being that so many dragons have given their lives to forge.