The Desktop programs will be available sometime in November here,
https://turbotax.intuit.com/personal-taxes/cd-download/
And the Online versions will open in December here, https://turbotax.intuit.com/personal-taxes/online/
The 2019 TurboTax online editions should be available sometime in December 2019.
The 2019 TurboTax desktop CD/Download editions should be available in mid-November and can be pre-ordered at this website - https://turbotax.intuit.com/personal-taxes/cd-download/
even after they're available, they'll probably need updating. e-filing won't open until late january or early february 2020.
after updates and before filing, check the returns. updates may have deleted some data that needs to be present.