Well, assuming it happens at all, it's been a long time coming.
My involvement in this one was fairly small - I did the ship concepts* as I recall, and was the line editor during the writing process. This was back in about 2003 or 2004 if I remember correctly.
I'm not sure that Solomani/ie OTU starships would be doable, even under an OGL for the ship design system. Only Mongoose and Avenger can publish in the OTU, so I suspect that staying within the T20 license was the only way to put this product out.
* Eg, Kormoran class commerce raider. Named for the Kormoran, a German commerce raider that sank HMSA Sydney under mysterious circumstances.