Just out of curiosity
There is no way I or one person could write the program, nor could I back one unless anyone would be intrested as I got $1.67, 47 bottlecaps, and 1/2 pound of belly-button lint for backing.
If a new cad software came out that maybe used a different file format but was able to export the files to a satisfactory .dwg file and able to convert or load .dwg's, but you and clients needed to be using the new software to take full advantage of capabilities and if not would then it would closely resemble your AutoCAD workflow.
It took took advantage of multiple cores, great documentation, if something did not work out well just came out and omitted we screwed-up and taking another approach. etc.....
But it took a much better approach for Civil, MEP, Arch, etc.. disciplines.
The price was 1/2 the price of AutoCAD and $125 a year.
Upgrades would come maybe 3, 4, 6 months or a year just whatever the new functionality needed to be designed, coded, and tested.
Was just wondering if companies would invest in a whole new software.