OK, how would I do CT+?
1) 2d6 for stats - I still think it's cool to use hexadecimal. I could do d20, but would want, maybe, 3d6+2 for PCs (that whole bellcurve thing).
2) I could go with either CT or T20 attributes. I have no problem with adding Wisdom into the CT mix if it used for Intuition. And, our character sheets always had an attribute for Appearance, anyway. Charisma makes that more complete.
3) Homeworld/"1st level" skills from T20 is a keeper. But, I would include the homeworld stuff in what you are allowed to get prior to enlisting, not in addition to. I wouldn't want 4 times what a regular advancement would give you, though! Criminy, I tried doing a character with high Int, and I couldn't find enough skills that I really wanted!
4) Allow a percentage (after taking out homeworld-related) of pre-enlistment skills to be chosen, with rest random. This provides a little challenge for the player. And, obviously, the tables would need to be based on homeworld/background/"class"/something.
5) Feats! Feats are good, but they (many times, not all) are on the wrong things in T20. Feats would be things that would make other people say, "It's magic how he works that spanner" or "She could talk a Vargr into eating dry cat food" or "How'd he
do that?" They might add bonuses to things you could learn and grow skilled at, but for these characters it's just
natural. And, not so many per character as T20.
6) I like the idea of Professional, Technical and Knowledge skills. Only allow Knowledge skills, though, based on Education attribute (not Intelligence).
7) Use something more akin to CT enlistments, but use experience points to determine how many skills received per year/term. Then, require a mixture of random and chosen skills. Allow skills from outside the service matrix at a higher cost (a la T20), and allow a "Life Pursuit" skill or two to be developed at regular cost. (Oh yeah, derive your XPs from survival, decorations, promotions, type of duty for that year, etc.)
8) Re-include attribute increases as a very available option during Prior History creation. Make them "buyable" just like the skills.
9) I don't know if I can stress this enough:
NO Levels!!!

Besides being Traveller heresy (IMO), it is counterintuitive to folks who haven't been sucked in by the D&D vortex. There are no levels in life - there are ranks, titles, life stages, but no levels. I can't resist snake venom any more now than I could when I was 18. If I had spent some time developing an immunity, yeah, but not just because I'm older and more experienced. I also can't shoot any better because I am older - I could, though, if I managed to get out and practice more.
10) OTU stuff. It should come separate, but all the classic stuff should be bundled up for use (all the different eras!) by Traveller fans like me.
11) Ships and Worlds: hire some of the folks around here (Sigg, etc.) to set up the world design and ship design sections. You might have to get them physically in the same location to allow them to "work out" a few of the disagreements in viewpoints.
My bit more than Cr.02