I asked this over in a thread on Boardgamegeek (with a poll), but why not mention it here in FFG's back yard?
The TIE Defender is very popular. But ever since Decipher depicted the ship around '96, it's never been depicted in the way it actually was in the game!

Fracalsponge's model seems to unify most of the depictions of the TIE Defender over the years (including the addition of the long-absent missile launchers!) but would FFG run with a fan-created model? I don't know Fractal personally but I don't think he'd be averse to allowing FFG access to his model if they approached him. Scale woudl have to be tweaked though since that depiction suggests the Defender is larger than previous depictions.

