I hate to necro a thread, but it's definitely on-topic. I've been integrating Kheldian lore into my own sci-fi universe ever since Homecoming came back, and since we have alternate universes and the ability to travel between them, it really opens up what you can do with your characters.
In my universe, the Kheldians died out millennia ago, and infused the last of their energies into a series of artifacts scattered around the local group of galaxies, in order to preserve what was left of them. As the younger races began to explore the stars, they came into contact with these artifacts. One of the first human races to do this was the Koronisians of the Koronis Galaxy, in their alternate universe. Centuries later, a rebellion forced the members of the ruling dynasty and their loyal supporters to flee through an experimental artificial wormhole which left them stranded in Praetoria. From there they eventually gained access to Primal Earth. But since some of these humans had latent Kheldian energy flowing through them (a legacy of the artifacts their ancestors had found), when they crossed universes, it attracted the attention of living Kheldians in Primal Earth (and possibly Praetoria as well).
Because of peculiarities having to do with a lineage of humans who for so long have been the masters of Kheldian energy (subconsciously at least), when living Kheldians come into contact with Koronisians, it often results in the Koronisian enslaving the Kheldian, instead of the other way around. Though not always the case, some of the more nefarious members of the Koronisian refugees have discovered this opportunity to gain the enhanced powers of a living Kheldian (much more powerful than the latent energies they already possessed). This has opened the door for some very unconventional Kheldian builds coming from my own universe. I call these Koronisian Kheldians (K-Khelds).
Here is one such character, who embodies the idea of "Rules are made to be broken". I'm using him to push just how far I can push the alignment system and mechanics of the game. He is a rogue-aligned Peacebringer in Praetoria.
And yes, I am aware of the Shadowstar connection. Since my universe actually predates the release of City of Heroes (and I do mean the original) by a few years, and I had already been using the name Shadowstar, when I created the version of my universe to use in City of Heroes, I decided to connect them to the Kheldians in such a way as to suggest that the Koronisian Shadowstar lineage could in some way be an alternate reality version of the Primal Earth Shadowstar.