I never played a tabletop game with the later D&D versions (4th etc.) and no CRPGs were ever made with them, but it looks like, not only did they screw up and excise away a lot of their background and pantheon, but also UTTERLY failed in licensing believable worlds to play in.
Here we are, still playing, gratefully, BG & BG2 (and other Infinity Engine games) because after 15 years nothing better was ever made.
This is at least partly due to the complex but well balanced game mechanics of D&D, coupled with a detailed mythology. You don't balance a complex game world without years of play testing by thousands of people.
In comparison, the new D&D Online looks like crap MMORPG fodder.
Why is there no decent online recreation of a table top like D&D environment?
OR, failing that, another intricate single player CRPG in the same cosmos?
The Suits, it seems, have control of the field to our collective chagrin. And their tastes are that of a twitch-happy 13 year old...