I'll just chime in and mention that Avenger Enterprises is also publishing non-OTU Traveller materials. We're in the curious position of being the only third party permitted to use the OTU, but have chosen not to. There's reasons.
Our products include the ships books, a couple of big adventures, the Far Avalon setting and a line of fiction set in the OTU (which we have a license for). At present we're republishing my various tales and novels set in the golden age and early recovery period, but there are plans to look at other eras too.
We're also considering publishing genericified (that's a word I just made up) versions of some of our OTU products, but that depends on a lot of factors that it isn't possible to predict.
Can I send you guys a PDF of the adventure I've authored? It's about 95% complete. I'm still waiting on some maps from Ishmael, but otherwise it's done.