Form 8960, Net Investment Inc - Indivs, Estates, Trusts appears to be available now. See link below.

https://ttlc.intuit.com/replies/3319876

The answer above fro TurboTax FAQ is not helpful - and actually adds the to confusion.  As of 2/01, the software continues to block e-filings because 8960 is 'coming soon.' The graph above says its available.  Clearly not, or the software would work as expected.

I was able to manually update and get around the error:
<a rel="nofollow" target="_blank" href="https://ttlc.intuit.com/questions/1901192-manually-update-turbotax-for-windows-software-basic-deluxe...>

Good Luck!