I transferred over several characters from TGC, and each was brought into SWChaos a bit differently. All but one had their story continue on here, with very little references to the timeline.
Kinda like they just picked up where they left off -- but grew from the tragedy of the 400 year darkness.
Danger continued on to make her business as big as she could.
Ti'Cira is still flying around with Patches.
Cira was the one that i retconned her past marriage and children and made her past get cast away, save for Omega Pyre. From that she used the Lady Protector / Prex focus to press her story from there.
Chloe Blake simply tossed herself into public threads that dealt with exploring, found new people to interact with.
Through all of this though, what was important was finding a good writing partner who could get with you back to back.
Kira, my happy go lucky Jedi, only grew in spades after interacting with Talon and other new Jedi, utilizing the invasions as well as other major events as turning points in her life --- that's where icly Kira met Soliael Devin Talith, and their story grew from there. I am very lucky that his writer bounces back with quick posts and we have good writing chemistry.
There are several different ways to go about it, but I think definately finding someone you click with and can get into a good posting groove is a good thing.
if all else fails -- memory wipe / amnesia / and toss her into a new place where other people can get to interact with her...
and she starts fresh while having random flashbacks.