I can't see this gaining any traction. There's nothing wrong with CSV as it is for basic data transfer. CSV had been unchanged now for so long, that any attempt to update it will fail - there are simply too many CSV parsers already implemented. If you are worried about people in the year 3000 understanding your data, add a .txt file alongside the CSV explaining the fields.
I agree. The biggest problem with CSV is Excel's terrible support. And while CSV is primarily used for data transfer, Excel could hypothetically be a great debug-viewer if it didn't do brain dead stuff like unrecoverably corrupt UPCs and other long numbers by default. There's an Excel Uservoice about this very issue from 2015: https://excel.uservoice.com/forums/304921-excel-for-windows-... They're "looking into it."…
It's so bad I check any csv file I get if it's been opened in Excel, and if I find any evidence that it has I reject it and make whoever I got it from give me the original source, or transform it with literally any other tool.