I started out with Traveller right around the time when JTAS #6 was on the shelves as a new publication and Book 5 - High Guard 2nd Ed. was a relatively new release.
The problem....
1) The functional illiteracy rate is too high nowadays, too many younger people simply don't read.
2) When the later versions of Traveller came out, like Mega Traveller, many of the rules got too cluttered and complicated with minutae and it slowed down the action and the enjoyment
3) There has been a lack of real computer integration into Traveller. Yes, there was a game that cam out a long time ago but the entire system really kind of needs to be moved as much onto the computer world as possible. I myself still enjoy the older books (though I've not tried d20 Traveller yet), but so many today are computer oriented.
Just look at where the interest is going. Traveller needs to be made so it's easy for one person to play or easy to play with others over the web.
It's going to be adapt or die, simple as that.
What the odd thing is, is that it hasn't been done yet. Since Snapshot and Mayday came out (both of which I still prefer to use), Traveller has been more and more structured like a computer game that was put on paper. Hence, taking such a game and putting it on a computer is quite feasable.
There are many aspects to this. Not only the obvious ships and space combat but things like commerce, fighting on ships, travelling through starports, etc. Since the designs all follow such a set of standardized rules for size, space, and fittings, such a computer environment would grow exponentially via third party and user/freeware contributions. It would also link vast numbers of players into campaigns like never before.
This is already happening on a titanic scale with in a similar form with some of the high speed, brainless shoot'em up type games.
Just look at the huge universe that could be created overnight by people working on the Spinward Marches if they all had standardized tools and formats to create such a universe on the web, linked together for all to travel in.
In theory, you could take a character, go out onto the web and hook up with groups of characters, and whole groups of adventurers on one campaign could possibly even run into groups on another campaign, enabling interactions and tangents like never before.
Since Traveller fans have always been something of a brainy, educated crowd, I'm sure something could be done along those lines.
It's either that or eventually watch Traveller go the way of the Atari ST and the Commodore Amiga.