The fact about the Starfury design was widely circulated at the time, whilst double checking the facts I stumbled across this claim:
Delenn was originally going to be a male character. The "transformation" at the start of season 2 would have been from a male character to a female character - both incarnations were to have been played by Mira Furlan. This is why, in the pilot, Delenn's appearance is much more severe and masculine than in the first series. The plan was to electronically modulate Furlan's voice into a lower register, so her voice would sound male. JMS wasn't happy with the results, so the male-to-female idea was dropped; Furlan's unaltered voice was used for the pilot, and her makeup was made more feminine for the series.
Hmmm, interesting